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nexus9112 [7]
3 years ago
11

The lengths of a professor's classes has a continuous uniform distribution between 49.2 min and 55.5 min. One class is randomly

selected. If P(x > c) = 0.488 , find c
Mathematics
1 answer:
SCORPION-xisa [38]3 years ago
8 0

Answer:

52.4 min

Step-by-step explanation:

100% of the times are between 49.2 min and 55.5 min.

48.8% of the times are between x and 55.5 min.

Write a proportion:

(55.5 − 49.2) / 1 = (55.5 − x) / 0.488

0.488 (55.5 − 49.2) = 55.5 − x

3.0744 = 55.5 − x

x = 52.4256

Rounded to the tenths place, the time is 52.4 min.

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3 years ago
5% of the toddlers in a preschool class drink water with their lunch. How many toddlers are in the class if 3 drink water with t
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Answer:

<u>There are 60 toddlers in the preschool class</u>

Step-by-step explanation:

1. Let's review the information provided to us to answer the question correctly:

Percentage of the toddlers in a preschool class drink water with their lunch = 5

Number of the toddlers in a preschool class drink water with their lunch = 3

2.  How many toddlers are in the class?

We'll solve the question, using the Direct Rule of Three, this way:

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*******************************

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