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3 years ago

9

The rabbit population in certain area is 200% of last year’s population. There are 1,100 rabbits this year. How many were there

last year?

1 answer:

IRINA_888 [86]3 years ago

5 0

Answer:

550

Step-by-step explanation:

If it is 200% more you have to divide by two and you get 550

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When designing a study to determine this population proportion, what is the minimum number of drivers you would need to survey t

Vlada [557]

Answer: 601

Step-by-step explanation:

The formula to find the minimum sample size(n) , if the prior population proportion is unknown:

$n=0.25(\dfrac{z^c}{E})^2$ , where E = margin of error , $z^c$ = critical z-value for confidence level c.

Given : E = 0.04

Z-value for 95% confidence = 1.96

So, the minimum sample size required = $0.25(\dfrac{1.96}{0.04})^2=0.25(49)^2$

$= 0.25\times 2401=600.25\approx601$

Hence, the minimum sample size required = 601

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jillian calculates that see will take 95 minutes to run 7 miles. she runs the distance in 80 minutes. what is jillians percent e

Aneli [31]

Answer:

15.79%

Step-by-step explanation:

do 95-80 which is 15

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3 years ago

Question 17 of 25

Brilliant_brown [7]

Answer:

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Step-by-step explanation:

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aleksandrvk [35]

Answer:

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Definition for compatible numbers

jenyasd209 [6]

When estimating, compatible numbers are numbers that are close in value to the actual numbers, and which make it easy to do mental arithmetic.

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