Question

Math

Posted 4 months ago

```
Margo is going to spin the following spinner 210 times. The spinner is divided into equal sections.
What is the best prediction for the number of times the spinner will not land on an elephant?
Choose 1 answer:
(A) Exactly 90 times
(B) Close to 90 times but probably not exactly 90 times
(C) Exactly 120 times
(D) Close to 120 times but probably not exactly 120 times
```

Sign in to unlock the answer

Answer from Sia

Posted 4 months ago

Solution by Steps

step 2

Use the probability from step 1 to predict the number of times the spinner will not land on an elephant out of 210 spins. Multiply the total number of spins by the probability: $210 \times \frac{3}{8}$

step 3

Perform the multiplication to find the prediction: $210 \times \frac{3}{8} = 78.75$

step 4

Since we cannot have a fraction of a spin, we predict that the spinner will not land on an elephant close to 78.75 times, which is approximately 79 times

B

Key Concept

Probability of an event

Explanation

To predict the number of times an event will occur, multiply the total number of trials by the probability of the event. The result gives an estimate, which is why the answer is close to but not exactly the predicted number.

Not the question you are looking for? Ask here!

Enter question by text

Enter question by image

Upgrade to Asksia Pro

Join a AskSia's Pro Plan, and get 24/7 AI tutoring for your reviews, assignments, quizzes and exam preps.

Unlimited chat query usages

Strong algorithms that better know you

Early access to new release features

Study Other Question