145k views
2 votes
Expected FrequencyA fair five sided spinner is spun 40 times.a) How many times would it be expectedto land on red?P(Red) = 15It would be expected to land on redItimes.1-5Hint:Set up and solve a proportion.

1 Answer

4 votes

It can be observed that sppiner is spun 40 times. So proabaility for red colour must include 40 in denominator. The fraction 1/5 has 5 in denominator which be change to 40 by multiplication of 8 to numerator and denominator.


(1)/(5)\cdot(8)/(8)=(8)/(40)

So, it is expected to land 8 times on the red colour.

So answer is,


(1)/(5)=(8)/(40)

and It would be expected to land on red 8 times.

User Gareth Davis
by
6.4k points