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rodikova [14]
3 years ago
5

What are the conditions for using the standard deviation formulasquare root p times 1 minus p divided by nwhen working with a sa

mpling distribution of proportions?
Mathematics
1 answer:
xeze [42]3 years ago
4 0
In order to use the Normal approximation to the Binomial ...

np ≥ 5 and n(1-p) ≥ 5 [note: some textbooks use 10 instead of 5, check your book or notes]

hope that helped
You might be interested in
Prove that 7 + 3 root 2 is not a rational number​
Tanya [424]

Answer:

Step-by-step explanation:

let 7 + 3√2 be an rational number where

7+3√2 = a/b [ a and b are coprime and b is not equal to zero]

3√2= a/b-7

3√2 =( a-7b) /b

√2 = (a-7b) /3b .....(i)

Now ,from equation (i) ,we get that √2 is rational but we know that √2 is irrational. so actually 7 + 3√2 is irrational not rational. thus our assumption is wrong. The number is irrational.

5 0
3 years ago
Read 2 more answers
For $7.52, you purchased 8 pens and highlighters from a local bookstore. Each highlighter cost $1.09 and each pen cost $.69. How
seraphim [82]
<span>i can. it says you got 8 pens. 1.09h + .69(8) = 7.52 1.09h + 5.52 = 7.52 do you know what to do from here?</span>
5 0
3 years ago
Jonathan took 33 pictures on the class trip and 67
Semenov [28]

Answer:

<em>JONATHAN WILL NEED 14 PAGES.</em>

Explanation:

<em>33 + 67 = 100</em>

<em>100 - 12 = 88</em>

<em>88 ÷ 6 = 14.6666667 </em>

<em>14.6666667 ⇒ </em><u><em>14</em></u>

<em>(Round 14.6666667 down to 14 because Johnathan does not have .6666667 of a page.)</em>

<em></em>

3 0
3 years ago
The ages in years of 21 people in a swimming pool are displayed in the stem-and-leaf plot. Determine the median age of
LenaWriter [7]

Answer:

<h3>5 years</h3>

Step-by-step explanation:

To get the median of the ages given

2, 4, 5, 6, 7, 8, 8, 8, 0, 3, 5, 9, 1, 4, 7, 6, 1, 2, 4, 4, 8

First we will need to rearrange the median ages in ascending order (from lowest to highest)

0, 1, 1, 2, 2, 3, 4, 4, 4, 4, 5, 5, 6, 6, 7, 7, 8, 8, 8, 8, 9

Next is to locate the middle value of the arranged data

(0, 1, 1, 2, 2, 3, 4, 4, 4, 4), 5, (5, 6, 6, 7, 7, 8, 8, 8, 8, 9)

The total values in both parenthesis are the same(10 in numbers) leaving 5 as the middle number.

Hence the median age of the people in the pool is 5years

5 0
3 years ago
An equilateral triangle has three equal sides.
Flauer [41]

Answer:

Step 1. Perimeter P means adding up all three sides of a triangle.

Step 2. Then P=s+s+s=3s where s is the length of the side of the equilateral triangle.

Step 3. ANSWER: Perimeter P=3s.

I hope the above steps and explanation were helpful.

Step-by-step explanation:

HOPE THIS HELPS

6 0
3 years ago
Read 2 more answers
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