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ra1l [238]
2 years ago
8

Every day Jack runs 3 km a) Find out how far he runs in 4 weeks​

Mathematics
1 answer:
Dafna1 [17]2 years ago
7 0

Answer:

84 km

Step-by-step explanation:

you times 7 by 4 and get 28 then you times 3 by 28 and get 84 km

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Answer:

The proportion of students whose height are lower than Darnell's height is 71.57%

Step-by-step explanation:

The complete question is:

A set of middle school student heights are normally distributed with a mean of 150 centimeters and a standard deviation of 20 centimeters. Darnel is a middle school student with a height of 161.4cm.

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Answer:

We first calculate the z-score corresponding to Darnell's height using:

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Therefore the proportion of students whose height are lower than Darnell's height is 71.57%

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