Automated electron backscattered diffraction is now being used in the study of fracture phenomena. The following information is on misorientation angle (degrees).
Class: 0−<5 5−<10 10−<15 15−<20 20−<30 30−<40 40−<60 60−<90
Rel freq: 0.179 0.168 0.174 0.135 0.193 0.071 0.051 0.029
Is it true that more than 50% of the sampled angles are smaller than 15°, as asserted by researchers?
A. Yes, the proportion of sampled angles smaller than 15° is greater than 0.50.
B. Yes, the proportion of sampled angles smaller than 15° is not greater than 0.50.
C. No, the proportion of sampled angles smaller than 15° is greater than 0.50.
D. No, the proportion of sampled angles smaller than 15° is not greater than 0.50.

Answers

Answer 1

Answer: A. Yes, the proportion of sampled angles smaller than 15° is greater than 0.50.

Step-by-step explanation:

Given the data :

Class: _______ relative frequency

0−<5 __________ 0.179

5−<10 __________ 0.168

10−<15 _________ 0.174

15−<20 _________ 0.135

20−<30 _________0.193

30−<40 _________ 0.071

40−<60 _________ 0.051

60−<90 _________ 0.029

Evaluating the proportion of sampled angles less than 15°. This consist of the following classes :

Class: ________frequency

0−<5 __________ 0.179

5−<10 __________ 0.168

10−<15 _________ 0.174

Summing up the relative frequency values :

(0.179 + 0.168 + 0.174) = 0.521

0.521 * 100% = 52.1%

Hence, more than 50% of the sampled angles are smaller than 15°


Related Questions

Four students spent $12 on school lunch. At this rate, find the amount 10 students would spend on the same lunch.

Answers

Answer:

it's $30 I just know trust meO_o

Step-by-step explanation:

have an amazing day luv

Answer:

10 students would pay for lunch with $30.

Step-by-step explanation:

This is how I know $30 is the correct answer:

1. To figure out how much money it would cost for 1 student I would take the $12 the four students paid for lunch and divide it by 4 so we would know the exact cost for one students lunch (12/4=3 or $3)

2. Now we know $3 is the cost for 1 student. We can now multiply the $3 by 10 (students) so we can get the cost for 10 lunches (3(10)=30 or $30)

3. We got our final answer of $30=10 students lunches.

I hope this helps:)

9x - 4= 2x + 3
-—-——-—-

Answers

Answer:

x = 1

Step-by-step explanation:

9x−4=2x+3 Move all terms containing x to the left side of the equation.

7x−4=3 Move all terms not containing x to the right side of the equation.

7x=7 Divide each term by 7 and simplify. x = 1

-14+6b +7-2b=1+5b what is answer?~PLEASE SHOW WORK 45 POINTS

Answers

Answer:

b=-8

Step-by-step explanation:

Sorry I don't have time to show work right now and write it down but this is the answer.

Answer:

b=8

Step-by-step explanation:

1.1     Pull out like factors :

-8 - b  =   -1 • (b + 8)  

Solving a Single Variable Equation

2.1      Solve  :    -b-8 = 0  

Add  8  to both sides of the equation :  

                     -b = 8

Multiply both sides of the equation by (-1) :  b = -8

Monica works in a mailroom for 18 hours
each week. How many hours does she work in
52 weeks?

Answers

Answer:

936

Step-by-step explanation:

Because 18 times 52= 936

8 and 1/2 + 7 and 1/ fourth

Answers

Answer:

15 3/4

Step-by-step explanation:

8+7=15

1/2+1/4= 3/4

15+3/4

Answer:

15 3/4

Step-by-step explanation:

You need to have like denominators before you add so you need to find the LCM (least common multiple) of the two numbers. Then you have to find how much you have to multiply each number by to get the multiple. Then you just have to remember that whatever you do to the bottom you do to the top.

1. 8 1/2 + 7 1/4     This is your equation.

2. 8 2/4 + 7 1/4      The LCM of 2 and 4 is 4. You multiply by two in the bottom to get 4 so you multiply by 2 at the top. (This is talking about the first fraction).

3. 15 3/4    Then you just add as you would normally add without changing the denominators an simplifying if you need to. (You don't need to simplify for this equation).

I hope this helped you.

At 1:00 p.m., Kahlil hops in his car and drives at a constant speed of 35 mph for 12 minutes to the grocery store. After 15
minutes at the grocery store, he realizes he is late and drives at a constant speed of 40 mph to the school, arriving at 1:42 p.m.
He then spends 20 minutes at school, buying tickets for the game.

Answers

Answer:

Uh? What's the question?

The
perimeter of
rectangle is 36 cm
If its width is 7cm Exaluate to its length

Answers

Answer:

11

Step-by-step explanation:

Bill is a builder.
On Monday he made mortar mix.
He used 24kg of sand and 5 kg of cement.
On Tuesday Bill will make the same type of mortar mix.
He will use 36 kg of sand.
How much cement does he need to make the same type of mortar mix?

Answers

Answer:

7.5 kg

Step-by-step explanation:

24 : 5

36 : x

x = 5 × 36 / 24

= 7.5 kg

Bill needs 7.5 kg of cement

Monday:

Sand = 24 kg

Cement = 5 kg

Tuesday:

Sand = 36 kg

Cement = x kg

Ratio of sand to cement

24 : 5 = 36 : x

24/5 = 36/x

Cross product

24 * x = 5 * 36

24x = 180

x = 180/24

x = 7.5 kg

Read more:

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Can someone help me with this math problem 34.2 divided by 7.6

Answers

4.5 is the answer for it
the answer is 4.5! hope this helps, good luck!!

use long division by dividing 78 and 3

Answers

Answer:

26

Step-by-step explanation:

Answer:

26

Step-by-step explanation:

Step 1:

Start by setting it up with the divisor 3 on the left side and the dividend 78 on the right side like this:

           

   3 ⟌ 7 8  

Step 2:

The divisor (3) goes into the first digit of the dividend (7), 2 time(s). Therefore, put 2 on top:

       2    

   3 ⟌ 7 8  

Step 3:

Multiply the divisor by the result in the previous step (3 x 2 = 6) and write that answer below the dividend.

       2    

   3 ⟌ 7 8  

       6    

Step 4:

Subtract the result in the previous step from the first digit of the dividend (7 - 6 = 1) and write the answer below.

       2    

   3 ⟌ 7 8  

     - 6    

       1    

Step 5:

Move down the 2nd digit of the dividend (8) like this:

       2    

   3 ⟌ 7 8  

     - 6    

       1 8  

Step 6:

The divisor (3) goes into the bottom number (18), 6 time(s). Therefore, put 6 on top:

       2 6  

   3 ⟌ 7 8  

     - 6    

       1 8  

Step 7:

Multiply the divisor by the result in the previous step (3 x 6 = 18) and write that answer at the bottom:

       2 6  

   3 ⟌ 7 8  

     - 6    

       1 8  

      1 8  

Step 8:

Subtract the result in the previous step from the number written above it. (18 - 18 = 0) and write the answer at the bottom.

       2 6  

   3 ⟌ 7 8  

     - 6    

       1 8  

     - 1 8  

         0  

What is the domain of the following relation?


a. {-3, -1, 1, 4, 5}
b. {-5, 0, 2, 6}
c. {-3, -5, 0, 2, 4, 5, 6}
d. there is no domain

Answers

The answer is a, because I need more

−|9| = −9 True or False

Answers

Answer:

false

Step-by-step explanation:

Answer:

false because the absolute value of -9 would be 9 not negativ 9

the difference between half of a number and 9 is 17

Answers

Answer:

4

Step-by-step explanation:

9 divided by 2 is 4.5 17 divided by 2 is 8.5 subtract the two to get 4

Answer: The difference between 26 and 9 is 17

Calvin is starting a new job this summer. He has created a table to represent his earnings, which are dependent on the number of hours he works. Write an equation to represent y, Calvin’s total earnings based on x the number of hours he works. * PLEASE HELPPP!!!!!!

Answers

Answer:

I think its 232.5

Step-by-step explanation:

Divide 3 by one then multiply that by 15.

Answer:

how much does he make in a hour

Step-by-step explanation:

Please help with math, will give brainliest

Answers

Answer:

1; 31.2 2; 12.4 3; 30.8 4; 118.4 5; 16.53 (i ran out of time or else i wouldve finished, just use google for answers! ^_^)

done the rest, just Step-by-step explanation:

1.31
2.12
3.30
4.118
5.16
6.74
7.20
8.98

9.341

10.377

helppp me please!!! ​

Answers

Answer:

18 hdhb

Step-by-step explanation:

Answer:

18

Step-by-step explanation:

21/1 x 6/7

21 x 6 = 126

1 x 7 = 7

126 / 7 = 18


What is the value of x?
(3x+5)
(8x-3)

Answers

Answer:

there are infinite x values

Step-by-step explanation:

The last awsner choice is 3/21 thank u pls pls I’ll give u brainliest

Answers

Answer:

question 10 answer I think is 4/147

Step-by-step explanation:

I did this

3/21 X 2/21 = 4/147

don't remember if that's the procedure but wish you luck

How long is the blue ribbon if the red ribbon is 12 inches

Answers

Answer:

can I have more info plz

Multiply. Write the answer in simplest form.
1/2 x 3/5 x 4/9

Answers

Answer:

4/75

Step-by-step explanation:

The required simplified form of the expression 1/2 x 3/5 x 4/9 is 12/90.

Given that, to determine the simplified form of the expression 1/2 x 3/5 x 4/9.

What is simplification?

The process in mathematics to operate and interpret the function to make the function or expression simple or more understandable is called simplifying and the process is called simplification.

Here,
= 1/2 x 3/5 x 4/9
Simplifying,
= [1×3×4] / [2×5×9]

= [12]/[90]
= 12 / 90

Thus, the required simplified form of the expression 1/2 x 3/5 x 4/9 is 12/90.

Learn more about simplification here:

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The length and width of a rectangle is (x + 5) and x, respectively.

Which statement best describes (x + 5)?
A.
The width of the rectangle is 5 times the length.

B.
The width of the rectangle is 5 more than the length.

C.
The length of the rectangle is 5 more than the width.

D.
The length of the rectangle is 5 times the width.

Answers

Answer:

the lenght of the rectangle is five more than the width

The function g(x) = –|x| is a transformation of the absolute value parent function. Which graph shows g(x)? Apex​

Answers

Answer:

A

Step-by-step explanation:

Apex

A. The parent function reflect across x-axis.

What is Function ?

A relation between set of inputs & set of outputs is called function. In a function, for each element of input set there is exactly one element of the set of outputs.

What is Parent function ?

The simplest form of a family of functions is called the parent function. A family of functions always share same highest degree & shape.

What is Absolute value function ?

If a function has an algebraic expression in absolute value symbols, then the function is called absolute value function.

How to describing the transformation ?

The parent function y = |x| always go downwards & hence the curve opened upward.

So, The parent function y = |x| reflect across x-axis.

Learn more about parent function here :

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A stadium has 55,000 seats . Seats sell for $28 in Section A

Answers

The answer is 1540000

The most a baker can spend on strawberries is $95.00. Strawberries cost $3.99 per pound, and the produce supplier charges a $15.20 delivery fee. The following inequality, where s stands for the number of pounds of strawberries, represents this situation:

Answers

Answer:

3.99s + 15.20 = 95.00

Step-by-step explanation:

you would put 's' next to the 3.99 because that's what your multiplying or having more than 1 of, then you would add the 15.20 because it's just a one time delivery fee.

Answer:

The answer is 20

Step-by-step explanation:

Isolate the variable by dividing each side by factors that don't contain the variable.

Inequality Form: s≥20

Interval Notation: [20,∞)

if (x) = x+8 and g(x) = -4x-3, find (f+ g)(x).
A. (F+ 9)(x) = 5x +11
B. (f+9)(x) = -3x+5
C. (f+ g)(x) = 3x - 5
D. (f+ 9)(x) = -5x - 11

Answers

Answer:

Answer=B

(f+g)(x)=-3x-5

Step-by-step explanation:

f(x)=x+8.

g(x)=-4x-3.

(f+g)(x) means f(x)+g(x),So

(x+8)+(-4x-3)

(add all same terms together)

=(x+(-4x))+(8+(-3))

=-3x+5

so,

(f+g)(x)=-3x+5

johanna prepares a mixture of salad mixed with mayonnaise carrots cucumber lettuce and cheese. what type of mixture divine salad is? why do you think so?​

Answers

Answer:

johanna prepares a mixture of salad mixed with mayonnaise carrots cucumber lettuce and cheese. what type of mixture divine salad is? why do you think so

A car company has three sales people, Anna, Mustapha and Joshua.
During March, Anna sold 21 cars, Mustapha sold 12 cars and Joshua sold 15 cars.
Write down and simplify the ratio of the number of cars they sold during March.
:
Anna : Mustapha : Joshua =
..........

Answers

Answer:

7:4:5

Step-by-step explanation:

21:12:15

7:4:5

Answer:

answer you have chosen in your answer booklet. ... Motor Vehicle's at 5% using the straight line method. Required: (a) ... Note 3: Selling and distribution expenses. K000.

ABCD=FGHI. What is the measure of <1 and <2?

Answers

Answer:

Angle 1 = 95°, and Angle 2 = 60°

This is due to the definition of congruent polygons, where the corresponding angles, and sides are equivilent just as it is ordered.

Karen scored a 76 on an exam meaning is 74 and one standard deviation of eight. Find her Z score.

Answers

Answer:

0.25

Step-by-step explanation:

(76-74)/8

=2/8

=1/4

=0.25

What is the equation for the line?

Answers

Answer:it may be the first one but I can’t see the lines on the graph clearly.

Step-by-step explanation:

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