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3 April, 21:52

The height of football players is normally distributed with a mean of 74 inches and standard deviation of I inch. If there are 50 football players on the team how many are more than 73 inches tall

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  1. 4 April, 00:47
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    Answer: 42 players are more than 73 inches tall

    Step-by-step explanation:

    Since the height of football players is normally distributed, we would apply the formula for normal distribution which is expressed as

    z = (x - µ) / σ

    Where

    x = height of football players.

    µ = mean height

    σ = standard deviation

    n = number of sample

    From the information given,

    µ = 74 inches

    σ = 1 inch

    The probability that the height of a player is more than 73 inches tall is expressed as

    P (x > 73) = 1 - P (x ≤ 73)

    For x = 73

    z = (73 - 74) / 1 = - 1

    Looking at the normal distribution table, the probability corresponding to the z score is 0.16

    P (x > 73) = 1 - 0.16 = 0.84

    Therefore, the number of football players in the team whose height is more than 73 inches is

    50 * 0.84 = 42
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