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Tanzania [10]
3 years ago
8

How do you find standard deviation?

Mathematics
1 answer:
Mila [183]3 years ago
3 0
You first work out the mean then for each number subtract the mean and square the result then work out the mean of those squared differences and take the square rot of that and you're done :)
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Make up a data set of five values with a mean of 10 and a median of 12 None of the values in your data set can be reapeted
Tanya [424]

Answer: See explanation

Step-by-step explanation:

Let the numbers be 2, 6, 12, 13 and 17.

From the given numbers, the mean will be:

= (2+6+12+13+17) / 5

= 50/5

= 10

The mean is 10

The median is 12 as it is the number in the middle when the values given are arranged in either ascending or descending order.

5 0
2 years ago
Find the missing length of the missing side. If necessary, round to the nearest tenth
allsm [11]
.................................38
7 0
3 years ago
500 plates cost $18.00 what does each plate cost​
ozzi

Answer:

$0.036

Step-by-step explanation:

I will be solving this questions in a rational, proportional way.

This question given is directly proportional. There are two types of proportion.

Direct - Let's say there are two values, x and y. In direct proportion, while x   increases, y increases with it.  

Inverse- Taking x and y, in inverse proportion, while x increases, y decreases or while y increases, x decreases.

In the given example, there are two values, number of plates and cost of plates. While the number of plates increases, the cost would surely increase. Therefore, giving us that it is a direct proportion.

500 plates : $18.00 :: 1 : $x

500 plates is to 18 dollars, then, 1 plate is to how many dollars?

In direct proportion, the product of extremes is equal to the product of means.

500(x) = 18(1)

500x = 18

x = 18 / 500

x = 0.036

Hence, one plate costs $0.036 or 3.6 cents

5 0
3 years ago
Read 2 more answers
A store is having a sale all items are marked 30% off
zepelin [54]
Since you didn’t put the numbers to find the amount, I’ll teach you how to.. Once you have the decimal figure, multiply it by the number for which you seek to calculate the percentage
6 0
3 years ago
Please solve B, C, D, E, and F and I will give Brainliest!
kykrilka [37]

Answer:

a. 125

b. 25/64

c. 0.25

d. 343

e. 49/4

f. 0.81

Step-by-step explanation:

multiply by the same number by the amount of times the power tells you

b. 5*5 = 25         8*8= 64

c. 5*5 = 25         0.5*0.5 = 0.25

d. 7*7*7 = 343

e. 7*7 = 49         2*2= 4

f. 9*9 = 81        0.9*0.9= 0.81

5 0
2 years ago
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