Mathematics, 01.10.2019 05:00 ayoismeisjjjjuan
Acompany that produces dvd drives has a 12% defective rate. let x represent the number of defectives in a random sample of 53 of their drives. a. what is the probability the sample will contain exactly 3 defective drives? give your answer to four decimal places. b. what is the probability the sample will contain more than 3 defective drives? give your answer to four decimal places. c. what is the probability the sample will contain less than 3 defective drives? give your answer to four decimal places. d. what is the expected number of defective drives in the sample? give your answer to two decimal places.
Answers: 2
Mathematics, 21.06.2019 12:50
Radii ok and nl are perpendicular to om because of the radius-tangent theorem. by definition of perpendicular, angles kom and lnm are right angles. this means that triangles kom and lnm are right triangles. angle lmn is common to both right triangles, so by the triangles kom and lnm are similar.
Answers: 2
Mathematics, 21.06.2019 18:40
Complete the steps, which describe how to find the area of the shaded portion of the circle. find the area of the sector by multiplying the area of the circle by the ratio of the to 360. subtract the area of the triangle from the area of the sector.
Answers: 3
Mathematics, 21.06.2019 21:30
Data from 2005 for various age groups show that for each $100 increase in the median weekly income for whites, the median weekly income of blacks increases by $105. also, for workers of ages 25 to 54 the median weekly income for whites was $676 and for blacks was $527. (a) let w represent the median weekly income for whites and b the median weekly income for blacks, and write the equation of the line that gives b as a linear function of w. b = (b) when the median weekly income for whites is $760, what does the equation in (a) predict for the median weekly income for blacks?
Answers: 2
Acompany that produces dvd drives has a 12% defective rate. let x represent the number of defectives...
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