Practice zscore question ? ?

the height of a sunflower is normally distributed with a mean of 14.2 feet and a standard deviation of 2.15

what is the probability of picking a sunflower that has a height greater than 16.4 feet?

show all work (how you found z score and final answer)

The soup shack usually makes tomato soup with 99 tomatoes for every 1212 cups of soup. today, they made 88 cups of soup with 66 tomatoes. how does today's soup compare to the usual recipe?

The number if marbles of different colors stored in a hat is listed below: 4 red marbles 10 green marbles 7 blue marbles. without looking in the hat, dan takes out a marble at random. he replaces the marble and then takes out another marble from the hat. what is the probability that dan takes out a blue marble in both draws?

Evaluate cos2θ for cosθ = square root of 3/2