The mean maximum aerobic power (VO2MAX) score for women ages 20 to 29 is 36 ml/min/kg with a standard deviation of 7 ml/min/kg. Find the probability of a woman between the ages of 20 to 29 having a VO2MAX score of greater than 45 ml/min/kg.

Respuesta :

Answer:

0.099 is the probability of a woman between the ages of 20 to 29 having a VO2MAX score of greater than 45 ml/min/kg. Ā  Ā  Ā 

Step-by-step explanation:

We are given the following information in the question:

Mean, μ = 36 ml/min/kg

Standard Deviation, σ = 7 ml/min/kg

We assume that the distribution of aerobic power is a bell shaped distribution that is a normal distribution.

Formula:

[tex]z_{score} = \displaystyle\frac{x-\mu}{\sigma}[/tex]

a) P(woman between the ages of 20 to 29 having a VO2MAX score of greater than 45 ml/min/kg.)

P(x > 45)

[tex]P( x > 45) = P( z > \displaystyle\frac{45 - 36}{7}) = P(z > 1.285)[/tex]

[tex]= 1 - P(z \leq 1.285)[/tex]

Calculation the value from standard normal z table, we have, Ā 

[tex]P(x > 45) = 1 - 0.901 =0.099 = 9.9\%[/tex]

0.099 is the probability of a woman between the ages of 20 to 29 having a VO2MAX score of greater than 45 ml/min/kg.