3 years ago

How do i find the standard deviation of test scores

Mathematics

2 answers:

user100 [1]3 years ago

4 0

Answer:

Step-by-step explanation:

Solve for the mean (average) of the five test scores.

Subtract that mean from each of the five original test scores. Square each of the differences.

Find the mean (average) of each of these differences you found in Step 2.

Take the square root of this final mean from #3. This is the standard deviation.

dem82 [27]3 years ago

4 0

Answer:

Look up your score on the web

Example: go to the web and enter 34/41 letter grade

You might be interested in

A cereal box is 8 inches by 2 inches by 12 inches. What is its surface area?

dusya [7]

Answer:

192 inches or 16 feet.

Step-by-step explanation:

Surface area is height x width x length, plug in your numbers are you get:

8 inches x 2 inches x 12 inches = 192 inches

4 0

3 years ago

Read 2 more answers

The length of a rectangle is 5 more inches more than the width. The perimeter is 46 inches. Find the length and the width.

natta225 [31]

Answer: w = 9 inches

w + 5 = 14 inches

Step-by-step explanation:

5 0

2 years ago

Luisa took a job in which her salary can be modeled by the exponential function y = 36,000(1.025)^x, where x is the number of ye

iogann1982 [59]

Answer:

B and D are the correct answer

Step-by-step explanation:

I took the test

8 0

3 years ago

A company's board of directors wants to form a committee of 3 of its members. There are 6 members to choose from. How many diffe

kondaur [170]

Order doesn't mater so use combinations:
6C3 = 6!/ (3! (6-3)! ) = 6! /(3!*3!) = 6*5*4*3! / (3! 3!) = 6*5*4/3*2*1) = 20

5 0

3 years ago

Read 2 more answers

Type the number of years in a century.

Fiesta28 [93]

One Hundred Years is the number of years in a century

6 0

3 years ago