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yawa3891 [41]
3 years ago
10

The average amount that a college student spends on a textbook is $205. What is the probability that a students spends between $

10 and $310
Mathematics
1 answer:
garri49 [273]3 years ago
5 0

Complete question :

The average amount that a college student spends on a textbook is $205 with a

standard deviation of $35. What is the probability that a student spends:

A. between $10 and $310?

Answer:

0.999

Step-by-step explanation:

Mean, m = 205 ; Standard deviation, s = 35

Z = (x - m) / s

x = 310

Z = (310 - 205) / 35 = 3

P(z < 3) = 0.99865

x = 10

Z = (10 - 205) / 35 = - 5.57

P(Z < - 5.5)

P(z < 3) - P(z < - 5.5)

0.99865 - 0

= 0.999

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inysia [295]

Answer:

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Step-by-step explanation:

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3 0
2 years ago
Read 2 more answers
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lakkis [162]

Answer:

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Step-by-step explanation:

Dado que:

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La fracción de manzanas que quedan = valor original de la manzana que se corta - la fracción de la manzana que se come

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3 years ago
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