To find the probability that the mom is at the front of the line:
Therefore the answer is 1/5.
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Answer:
yes
Step-by-step explanation:
I think sorry if I am wrong
Answer:
Square
Step-by-step explanation:
Using the z-distribution, it is found that the 90% confidence interval is given by: (0.6350, 0.6984).
<h3>What is a confidence interval of proportions?</h3>
A confidence interval of proportions is given by:
In which:
- is the sample proportion.
In this problem, we have a 90% confidence level, hence, z is the value of Z that has a p-value of , so the critical value is z = 1.645.
The sample size and the estimate are given by:
Hence, the bounds of the interval are given by:
The 90% confidence interval is given by: (0.6350, 0.6984).
More can be learned about the z-distribution at brainly.com/question/25890103
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Answer:
<h2>8</h2>
Step-by-step explanation:
Divide 11 1/3 by 1 5/12 to find out the rough amount of days she practiced.
11.3333/1.41667 = 7.9999 or about 8
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