A local grocery store has asked you to examine the probability of choosing a product based on the height of shelf on which the product is placed. The random variable X is the height of the shelf from the floor. The customers’ choice of products is defined by the following probability distribution:

a. What is the cumulative probability distribution of X?
b. What is the probability of choosing an article from a shelf equal to or higher than 60 cm?
c. What is the probability of choosing an article from the shelf smaller than or equal to 40 cm?

Transcribed Image Text:

Height (x) P(x) 0-20 20-40 40-60 60-80 80-100 0.08 0.12 0.22 0.34 0.24