you spin a spinner 50 times. it lands on red 8 times, yellow 12 times, green 20 times, and blue 10 times. based on the results, what is the experimental probility of its landing on green or yellow? thanks

I will be happy to critique your work on this.

i have a different question bobpursley let me know if I'm right.a bag contains 33 green marbles and 25 blue marbles. you select a marble at random from the bag. find the theoretical probability of selecting a blue marble. could the answer be 25/58.

You are right.

A spinner is divided into 8 equal sections. Lara spins the spinner

120 times. It lands on purple 30 times.
How many more times does Lara need to spin the spinner and have it
land on purple for the relative frequency to equal the theoretical
probability?

From a barrel of colored marbles you randomly select 7 blue, 5 yellow, 8 red, 4 green, and 6 purple marbles. Find the experimental probability of randomly selecting a marble that is NOT yellow. Write your answer in simplest form.

please help me answer this i'm doing a math posttest and i need the answer

To find the experimental probability of landing on green or yellow, you need to divide the total number of times the spinner landed on green or yellow by the total number of spins.

In this case, the spinner landed on green 20 times and yellow 12 times, which gives a total of 20+12=32 times landing on green or yellow.

Since the spinner was spun 50 times, the experimental probability of landing on green or yellow is 32/50.

To simplify this fraction, you can divide both the numerator and denominator by their greatest common divisor, which is 2 in this case.

32/50 simplifies to 16/25.

Therefore, the experimental probability of the spinner landing on green or yellow is 16/25.

As for your second question, you are correct. The theoretical probability of selecting a blue marble from the bag can be found by dividing the number of blue marbles by the total number of marbles in the bag.

There are 25 blue marbles and 33 green marbles, so the total number of marbles is 25+33=58.

Therefore, the theoretical probability of selecting a blue marble is 25/58.

Great job on both questions!

duh i dunno lol. read your book more...