Answer the picture first then answer my second question lot of points
2 answers:
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Answer:
The boys need to complete the run in 385.9 seconds or less in order to earn a certificate of recognition from the fitness association.
Step-by-step explanation:
We are given the following information in the question:
Mean, μ = 450
Standard Deviation, σ = 50
We are given that the distribution of time for fitness test is a bell shaped distribution that is a normal distribution.
Formula:
We have to find the value of x such that the probability is 0.10
P(X<x) = 0.10
Calculation the value from standard normal z table, we have,
Hence, boys need to complete the run in 385.9 seconds or less in order to earn a certificate of recognition from the fitness association.