A recent survey concluded that the proportion of american teenagers who have a cell phone is 0.27. the true population proportio
1 answer:
Answer:
The average for the sampling distribution of the sample proportion is 0.29
The standard deviation for this sampling distribution is 0.01435
Step-by-step explanation:
The mean of the sampling distribution for the sample proportion equals the actual population proportion, which is p = 0.29 in this scenario.
The standard deviation for the sampling distribution of the sample proportion is computed as follows;
Utilizing the provided values;
p = 0.29
1 - p = 0.71
n = 1000
The standard deviation computes to;
Thus, the standard deviation is 0.01435.
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The question appears to be incomplete. Here’s the complete inquiry:
Samir is quite skilled with the gun. When he targets a specific aim at the shooting range, he has a 0.95 probability of striking it. On one occasion, Samir sets out to shoot 10 targets consecutively.
If he has the same chance of hitting each of the 10 targets, what is the likelihood that he will miss at least one?
Response:
40.13%
Step-by-step breakdown:
Let 'A' represent the event of successfully hitting all targets in 10 trials.
The complement of 'A' is
Now, since Samir has a consistent probability of hitting each target at 0.95.
Now,
We know that the combined probability of an event and its complement equals 1.
<pThus,Consequently, the probability that he misses at least one target among 10 attempts is 40.13%.