lisa and bart spin the spinner 60 times

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27-06-2018
Mathematics

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lisa and bart spin the spinner 60 times

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smmwaite smmwaite · Answer 1 · 2018-06-27T22:32:40+02:00

The question is not complete. It should read;
Lisa and Bart spin this spinner 60 times the result are below/ black=17 blue=15 orange=21 purple=7 a. What is the experimental probability of a spin of orange? B which color had an experimental probability that matched its theoretical probability

Answers
a) 0.35
b)Blue

Explanation
The probability of an event is its chance to occur.
Probability is found by the formula,

Probability = (Number of favourable outcome)/(Number of total outcome)

Part a
The orange are 21 and the total spins are 60.
Probability (orange) = 21/60
= 0.35

Part 2
The theoretical probability of blue is normally 25%.
By calculating the experimental probability of blue we get,
P(blue) = 15/60
= 1/4
In percentage
1/4×100 = 25%

So, the color that had an experimental probability that matched its theoretical probability is blue.