Given:
Ava estimates that 475 songs will fit on her iPad.
The actual amount of songs that fit is 350.
To find:
The percent of error.
Solution:
We know that,
Putting the given values, we get
Therefore, the percent of error is 35.71%.
Perimeter with radius 14
1 answer:
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Check the picture below.
make sure your calculator is in Degree mode.
make sure your calculator is in Degree mode.
Answer:
The estimated number of times the spinner will land on 3 is 20.
Step-by-step explanation:
The complete question is:
A four-sided spinner is provided. If Tom spins the spinner 80 times then work out an estimate for the number of times the spinner will land on 3.
Solution:
Assume that the four-sided spinner is unbiased.
That is all the four outcomes are equally likely to be selected.
The probability that the spinner lands on any of the four numbers is:
P(1) = P (2) = P (3) = P (4) = 0.25
It is provided that Tom spins the spinner <em>n</em> = 80 times.
The spinner can land on any of the four numbers independently.
The random variable <em>X</em>, defined as the number of times the spinner lands on 3, follows a Binomial distribution with parameters <em>n</em> = 80 and <em>p</em> = 0.25.
The expected value of <em>X</em> is:
Thus, the estimated number of times the spinner will land on 3 is 20.