Question

I need help answering the question in the photo

Answer 1

Given:

Results of a spinner shown in the table.

To find:

The experimental probability of the spinner landing on a 1 or 7.

Solution:

From the given table it is clear that,

Spinner landing on 1 = 12 times

Spinner landing on 7 = 9 times

Spinner landing on 1 or 7 = 12+9 = 21 times

Total number of times spinner landed = 12+35+72+29+40+18+9+65+42 = 322 times

Now, the experimental probability of the spinner landing on a 1 or 7 is

$P=\dfrac{\text{Spinner landing on 1 or 7}}{\text{Total number of times spinner landed}}$

$P=\dfrac{21}{322}$

$P=0.06521739$

$P\approx 0.065$

Therefore, the correct option is A.