What is the probability that the first ball is red

Reference no: EM13337852

Question No 1:

a). The numbers 10 to 18 inclusive are written on slip of paper and the slips are placed in a bag and thoroughly mixed. One slip is drawn from the bag random. What is the probability that the number on the slip is even? Divisible by 4?

b). An urn contains 5 black balls, 6 red balls, and 3 white balls. Four balls are drawn in succession each ball being replaced after the next one is drawn. What is the probability that the first ball is red, the second white and the tired black.

c). In a factory machine A produces 70% of the output and machine B produces 30%. On the average 8 items in 1000 produced by A are defective and 5 items in 1000 produced by B are defective. An item drawn at random from a day’s output is defective. What is the probability that it was produced by A or B?

d). Three friends have applied for three different positions in different departments. Each has a probability of 0.3 of being selected. What is the probability that at least one of them is selected?

e). A hockey player’s probability of connecting a penalty corner is 2/5. Find the probability that he connects 3 out of 6 chances in the same match.

f). Approximately 30% of all homes in a locality have washing machines. What is the probability that in a sample of 80 homes from that locality fewer than 30 would have washing machines?

Reference no: EM13337852

Questions Cloud

Find the joint probability function : An urn contains 3 black balls,2 red balls and 3 green balls and 2 balls are selected at random from it.if x is nomber of black balls and y is the nomber of red balls selected, then find (1)the joint probability function f(x,y); (2)the conditional p..

What is the p-value for this test : Two different types of glass bottles are suitable for use by a soft-drink beverage bottler. The internal pressure strength of the bottle is an important qualitycharacteristic. It is known that 1 = 2 = 3.0 psi. From a random sample of n1 = n2 = 16 bot..

Assume the population of kilowatt-hours tobe normal : The Edison ElectricInstitute has published figures on the annual number ofkilowatt-hours expended by various home appliances. It is claimed that a vacuum cleaner expends anaverage of 46 kilowatt-hours per year.

What is the probability that the first ball is red : An urn contains 5 black balls, 6 red balls, and 3 white balls. Four balls are drawn in succession each ball being replaced after the next one is drawn. What is the probability that the first ball is red, the second white and the tired black.

Positively related events-spuriously related events : Positively related events. Explainwhy they are directly related. Negatively related events. Explainwhy they are inversely related.

Sample size sample mean and populaton vairiance : I have a worksheet problem i have two lists with the sample size sample mean and populaton vairiance. How do i find the margin of error with a 95% confidence interval.

Alculate the average product of labor : The mgr. of a nat. retailing outlet hired an economist toestimate the firm's production function. based on theeconomist's report, the mgr. now know's the firm's productionfunction is given by Q = K1/2 L1/2 and that capital is fixedat 1 unit.

What is the covariance between male and female earnings : In september, seattle's daily high temperature has a meanof 70F and a standard deviation of 7F. What is the mean, standarddeviation, and variance in C? In a given population of two-earner male/female couples,male earnings have a mean of $40,000 per y..

User Account

All Pages