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frozen [14]
3 years ago
9

Suppose that you are attempting to estimate the annual income of 1700 families. In order to use the infinite standard deviation

formula, what sample size, n, should you use
Mathematics
1 answer:
andrew-mc [135]3 years ago
7 0

Answer:

Sample size should be less than 85

Step-by-step explanation:

Sample size should be less than 85

Step-by-step explanation:

To use the infinite standard deviation formula, n has to be <= (0.05)(1700)

n <= 85

So the sample size has to be less than 85

In another way too,

n = sample size

N = population size

For population, we multiply correction factor to the infinite standard deviation

F is <= 0.05

n/{N}

n<0.05x1700

n<85

Sample size should be less than 85

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Find the missing angle<br> measures marked with<br> question marks.
slavikrds [6]

Answer:

First one- The ? across from 70 degrees is 70 degrees, and the ones on the side are both 110 degrees.

The second one- The one across 53 degrees is 53 degrees and the ones are the side are both 127 degrees.

Step-by-step explanation:

Take the shown angle and subract that by 180 degrees to get your answer for the missing angles. And the one across from the shown angle is the same number.

Hope this helped im not sure if its right though.

6 0
3 years ago
Ben walks 2 m from his desk to the teacher's desk. From the teacher's desk, he then walks 3 m in the same direction to the class
elena55 [62]
2m + 3m=5m

2m+(-3)m

2m - 3m = 1m

So the answer was 1m
7 0
3 years ago
Read 2 more answers
If the equation y² - (K-<br>2y + 2k +1 = 0<br>with equal roots find the value of k​
777dan777 [17]

Answer:

y² - (K-  2)y + 2k +1 = 0

equal roots means D=0

D= b^2 - 4ac

a=1, b= (k-2), c= 2k+1

so,

(k-2)^2 - 4(1)(2k+1) = 0

=> k^2 +4 - 8k -4 = 0

=> k^2 -8k = 0

=> k^2 = 8k

=> k= 8k/k

=> k = 8

Therefore the answer is k= 8

Hope it helps........

8 0
3 years ago
Complete the equation of the line whose interpret is (9.0) and slope is -2. Remember to use y=mx+b format
kenny6666 [7]

Answer:

y = - 2x + 18

Step-by-step explanation:

Step 1:

y = mx + b          Slope Intercept Form

Step 2:

y = - 2x + b         Input Slope Value

Step 3:

0 = - 2 ( 9 ) + b           Input x and y values

Step 4:

0 = - 18 + b        Multiply

Step 5:

b = 18          Add 18 on both sides

Answer:

y = - 2x + 18

Hope This Helps :)

7 0
2 years ago
What is the corresponding growth decay factor of the given annual rate of +200%
Alina [70]
2000 should be it I'm pretty sure
4 0
3 years ago
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