Assistance and make a purchase

Reference no: EM13985456

A video movie store owner finds that 30% of the customers entering the store ask an assistant for help and that 20% of the customers make a purchase before leaving. It is also found that 15% of all customers both ask for assistance and make a purchase. What is the probability that a customer does at least one of these two things?

Reference no: EM13985456

Questions Cloud

Problem regading the binomial distribution : Assume each newborn baby has a probability of approximately 0.53of being female and 0.47of being male. For a family with four children, let X equals=number of children who are girls. a. Identify the three conditions that must be satisfied for X to..

Write out the estimated regression equation for heating area : Write out the estimated regression equation for heating area based on wattage and what does the value of the regression coefficient "b" tell us in this situation?

Justify the requirement of a chief information officer : What systems would you propose that would serve the company's needs?

Confidence interval for the true mean weigh : For these data, a 99% confidence interval for the true mean weigh loss by patients attending clinic would have limits (? , ?).

Assistance and make a purchase : A video movie store owner finds that 30% of the customers entering the store ask an assistant for help and that 20% of the customers make a purchase before leaving. It is also found that 15% of all customers both ask for assistance and make a purc..

Are your dreams similar or different from those of langston : Do you agree with King's belief that you need to create tension in order to have reform come about? Why or why not?

Find the total charge in the sphere : Find the total charge in the sphere. Find an expression for the electric field inside the sphere, a distance V from the center. Find an expression for the electric field outside the sphere, a distance Y from the center.

Minimum and maximum head breadths : Due to financial constraints, the helmets will be designed to fit all men except those with head breadths that are in the smallest 2.5% or largest 2.5%. Find the minimum and maximum head breadths that will fit men.

Estimate the repeatability and reproducibility of the gauge : A measurement systems experiment involving 20 parts, three operators, and two measurements per part is shown in the Table 8E.10. (a) Estimate the repeatability and reproducibility of the gauge.

User Account

All Pages