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kifflom [539]
2 years ago
9

Suppose a normal distribution has a mean of 62 and a standard deviation of

Mathematics
1 answer:
tankabanditka [31]2 years ago
6 0

Answer:

66.8% or 0.66772

Step-by-step explanation:

0.66772

Given that :

Mean (m) = 62

Standard deviation (s) = 4

probability that a data value is between 57 and 65

P(57 < x < 65)

Using the relation :

(x - m) / s

P(x < 57) :

(57 - 62) / 4 = - 1.25

P(Z < - 1.25) = 0.10565 ( Z probability calculator)

P(x < 65) :

(65 - 62) / 4 = 0.75

P(Z < 0.75) = 0.77337 (Z probability calculator)

P(Z < 0.75) - P(Z < - 1.25)

0.77337 - 0.10565 = 0.66772

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First you have to find out the 3% of 900 (is 27)

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Answer:

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Step-by-step explanation:

Here, the given question is INCOMPLETE.

Renee, Susan and Martha will share the cost to rent a vacation house for a week. Renee will pay 40% of the cost. Susan will pay 0.35 of the cost. Martha will pay the remainder of the cost. If the cost to rent the vacation house is $800, how much will each person pay?

Here, the total cost of the vacation  = $800.

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Calculating 40% of $800, we get:

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Calculating 35% of $800, we get:

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