QUESTION 4 A box contains 3 cherry frozen treats and 2 grape frozen treats. Maggie takes a treat from the box without looking, g
1 answer:
Answer:
<h2>3/10</h2>Step-by-step explanation:
Given the sample space
3 cherries
2 grapes
The sample size S = {3+2}= 5
For for the first selection
The probability of picking a grape
Since the second selection is without replacement the sample size is now 4
The probability of picking a cherry
The probability that her brother gets a grape treat and she gets a cherry treat =
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We have the following data:
Margin of Error = E = 2.7 % = 0.027
Sample size = n = 900
Proportion of adults in favor = p = 60% = 0.6
We need to find the confidence level. For this first we need to find the z value.
The margin of error for a population proportion is given as:
Using the values, we get:
As, seen from the z table, z=1.65 corresponds to the confidence level 90%. So, the answer to this question is option B
Margin of Error = E = 2.7 % = 0.027
Sample size = n = 900
Proportion of adults in favor = p = 60% = 0.6
We need to find the confidence level. For this first we need to find the z value.
The margin of error for a population proportion is given as:
Using the values, we get:
As, seen from the z table, z=1.65 corresponds to the confidence level 90%. So, the answer to this question is option B