DSUDLER6826 DSUDLER6826

Today at 8:34 PM
Mathematics

Answered

A sample of 4 different calculators is randomly selected from a group containing 1212 that are defective and 3333 that have no defects. find the probability that at least one of the calculators is defective. round to the nearest thousandth.

Answer :

sqdancefan sqdancefan

Today at 8:39 PM

There are 45C4 = 148,995 ways to choose 4 calculators out of a group of 45.
There are 33C4 = 40,920 ways to choose 4 calculators that are not defective.

The probability that at least one is defective is (148,995 -40,920)/148,995 ≈ 0.725.

Answer Link

Other Questions

This pyramid has the same base as the prism, and its height is three times the height of the prism. What is the ratio of the volume of the pyramid to the volume

At 16 juana is an appropriate weight likes to eat whatever she wants what’s the best way to ensure juana’s health

what event came to symbolize fear of immagrants and radical ideas

An electronics company has four stores, all about the same size, within the city. The graph shows last month’s sales figures for one of the stores. Which statem

how do you know that aliens don't exist

Вкажіть вираз , коефіцієнт якого дорівнює 0,02 с поясненням

divide[tex] \sqrt{3a + 2 \sqrt{3a + 3a - 6a \: by3a} } [/tex]

balance the chemicalreaction:- Ca + HNO3- Ca(NO3)2+N2O+H2O

Draw a triangle of two sides 5.8 and 4 and included angle is 45°. Now construct a parallelogram whose area is equal to the given triangle and one angle of the p

write two difference between anode rays and cathode rays?

Which public figure vowed to uphold the segregation of Louisiana’s public schools? Answers A... judge John wisdom B.. governor Jimmie Davis C... judge skelly Wr

What is the value of x in the equation 3x - 1 / 9 y=18 when y equals 27?

What are the male and female reproductive structures found in flowers? male: stamen; female: pistil male: pistil; female: stamen male: sepal; female: petals mal

determine if passive or active statement We are going to watch a movie tonight.

Which sentences contribute to a sense of hope in this excerpt from "The Story of an Hour" by Kate Chopin? She wept at once, with sudden, wild abandonment, in he

What does x+5>8 equal

What does the figurative language in the following sentence most clearly imply? The soft breeze caressed Keisha's hair like a long-lost friend. O A. That the br

determan if these are passive or active statements "The students are required by the school to attend orientation every semester."

A girl throws a ball up into the air. The picture shows the position of the ball every 1 second A. The force of gravity slows the ball B. The force of friction

One of the first contributions from the Industrial Revolution was the perfection of the steam engine by who