Rita spun a spinner 100 times, and the results are shown in the following table.



Number
Frequency

1


10


2


35


3


55



Rita's friend Pamilla models Rita's experiment by drawing a spinner with three equal sections labeled 1,2, and 3.Is the spinner Pamilla drew a good model for Rita's experiment? Why or why not?

Responses
Yes, there are three numbers and three sections.

No, the spinner should have more than three sections.
.
Yes, all spinners should have equal sections.

No, the three events are not equally likely to occur.

1 answer

The correct response is:

No, the three events are not equally likely to occur.

Rita's spinner results show that the frequency of each outcome is not equal: she got 10 occurrences of 1, 35 occurrences of 2, and 55 occurrences of 3. This indicates that the outcomes are not equally likely. Pamilla's spinner, with three equal sections labeled 1, 2, and 3, implies that each outcome would have a probability of 1/3, which does not match Rita's results.