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3 years ago

If the standard deviation of a population increases what else must necessarily increase

Mathematics

1 answer:

Verdich [7]3 years ago

6 0

The *standard error* must also increase if the standard deviation of a population increases.

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What is the unit rate of 2.99 for 14 pounds

natali 33 [55]

It is .21 or 21 cents for each pound.

8 0

4 years ago

Find the surface area and volume of a rectangular solid with length 10, width 7, height 12

blagie [28]

Answer:

Surface area is =548

Volume = 840 in³

Step-by-step explanation:

l × w, l × w, w × h, w × h, l × h, l × h

70 + 70 + 84 + 84 + 120 + 120 = 548

l × w × h = 840

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4 years ago

Factorise the following expression using grouping and use binomial products to simplify.

rewona [7]

Answer:

11x-55-5a+ax

11(x-5)+a(x-5)

(11+a)(x-5)

Step-by-step explanation:

First you factor out the common factors

for(11x-55) is would be 11 as both of these figures are the multiple of 11

for(ax-5a) the common factor is a which will be factor out

Then after doing the process you will get

11(x-5)+a(x-5)

then factor out(x-5)which will give you

(11+a)(x-5)

6 0

4 years ago

Read 2 more answers

The graph of quadratic parent function f was transformed to create the graph of

Vera_Pavlovna [14]

Answer:H

Step-by-step explanation:

Y= (x+2)^2-5

2 to the left x+2=0 x=-2

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5 0

3 years ago

In a group of 1,200 people, 468 have brown eyes, 252 have blue eyes, 132 have green eyes, and 348 have black eyes. What is the p

Blizzard [7]

<u>Answer:</u>

The correct answer option is C. P(blue) = 21%.

<u>Step-by-step explanation:</u>

We know that,

the total number of people in a group = 1200

the number of people with brown eyes = 468

the number of people with blue eyes = 252

the number of people with green eyes = 132

the number of people with black eyes = 348

To find the probability of a person with blue eyes to be chosen, we will divide the number of people with blue eyes by the total number of people in the group and multiply it by 100.

P (blue) = $\frac{252}{1200}$ × $100$ = 21%

7 0

4 years ago