Sandra's scores on the first first 4 tests 87% , 92% , 76% , and 89%. what is the minumum score she needs to make on the fifth test so that her average is at least and 80%?

probability that the arrow will stop on the same letter twice = (c).

Step-by-step explanation:

Given : Maria will spin the arrow on the spinner 2 times.

To find : What is the probability that the arrow will stop on the same letter twice.

Solution : We have given a spinner that spin twice and stop on the same letter.

Formula for probability = .

Here, total part of spinner = 3 and it spin two times

So, total possible outcome = 6.  Arrow ston on same letter twice( favorable outcome) =2.

Plugging the values in formula :

Probability =  .

Probability =  .

Therefore,  probability that the arrow will stop on the same letter twice = (c).