The distribution of the amount of money undergraduate students spend on books for a term is slightly right - skewed, with a mean of $400 and a standard deviation of $80. If a student is selected at random, what is the probability that this student spends more than $425 on books? O0.1125 00.3773 00.6227 This cannot be determined from the information given.

Question

Mathematics

Victoria Benson

29 September, 19:46

The distribution of the amount of money undergraduate students spend on books for a term is slightly right - skewed, with a mean of $400 and a standard deviation of $80. If a student is selected at random, what is the probability that this student spends more than $425 on books? O0.1125 00.3773 00.6227 This cannot be determined from the information given.

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Lainey Acosta · Answer 1

Step-by-step explanation:

given mean = $400

standard deviation = $80

Probability that this student spends more than $425 on books:

P (X> 425) = 1 - P (X<425) = P (425-400/80) = P (Z< 0.3125)

=1 - P (Z<0.3125)

=1 - 0.6227 = 0.3773

So, probability is 0.3773