Kyle has a bag of red, green, and blue marbles. He asks Linda to draw a marble without looking in the bag, record its color, and replace it. She draws 20 times with these results: 7 red marbles, 9 green marbles, and 4 blue marbles. What is the experimental probability of drawing a red marble? Write your answer as a fraction (in simplest form), decimal, and percent.
Pls pls answer
Fraction:

Decimal:

Percent:

2people are trying different phones to see which one has the better talk time. chatlong has an average of 18 hours with a standard deviation of 2 hours and talk-a-lot has an average of 20 hours with a standard deviation of 3. the two people who tested their phones both got 20 hours of use on their phones. for the z-scores i got 1 for the chatlong company and 0 for talk-a-lot. what is the percentile for each z-score?

The number of 8th graders who responded to a poll of 6th grade and 8 th graders was one fourtg of the number of 6th graders whi responded if a total of 100 students responddd to the poll how many of the students responded were 6 th graders

What would the rule be for the reflection of y=-3