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1 answer:
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Answer:
The probability would be 0.9586
Step-by-step explanation:
Given,
Mean, ,
Variance,
Standard deviation,
,
If X represents the number of items produced in a factory during a week.
Hence, the probability that this weeks production will be between 40 and 60
Using z score table
= 0.9793 - 0.0207
= 0.9586
Answer:
5 cats, 1 fish and 94 birds
Step-by-step explanation:
Let
- c be the number of cats;
- b be the number of birds;
- f be the number of fish.
A kid bought 100 toy animals, then
If a cat costs $10.00, then c cats cost $10c.
If a fish costs $3.00, then f fish cost $3f.
If a bird costs $0.50, then b birds cost $0.5b.
In total,
We get the system of two equations:
From the first equation:
Substitute it into the second equation:
Number f must be a whole number greater than 0, so
Number c must be a multiple of 5, thus the only possible value for c is 5.
When c = 5, then