1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Allisa [31]
4 years ago
5

A sample of 4 different calculators is randomly selected from a group containing 1212 that are defective and 3333 that have no d

efects. find the probability that at least one of the calculators is defective. round to the nearest thousandth.
Mathematics
1 answer:
marissa [1.9K]4 years ago
3 0
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.
You might be interested in
In a beanbag toss game, Janelle scores 5 points for landing on a round target and 8 points for landing on a square target. She n
Nostrana [21]

Answer:

It is A.

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
Hello need ASAP please help due tommorow​
xz_007 [3.2K]

Answer:

28×4/7=16

Step-by-step explanation:

well it seems as the most logical answer but it also seems the realist one to pick for me personally but I would think it is better to see mixed opinions but I think it's the 2nd one

6 0
3 years ago
Find the value of y, given value of x.
podryga [215]

Step-by-step explanation:

a. y = 2 + 4.3(-6)

y= 2- 25.8

y= -23.8 or y= -24

b. y= (9-3)2

18-6=12

c. y= 3.5-2

y= 1.5

d. y= 5(-2) - 4

y= -10-4

y= -14

5 0
3 years ago
Can some helppp!!! This is due in 10 min!!!! With explanation plssss
Alja [10]

Answer:

16, and 40 for the first chart

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
4/5 + 3/4 =
marshall27 [118]

The topics you should learn are equating denominators and fractions. This is summing up simple fractions.

So we have to make denominators' numbers the same in order to sum up them all (we can sum fractions if the denominators are the same) , and we did it by cross product (that thing on the picture)

Equating by lcm (least common multiple) is the easiest way, because you might see bigger numbers on other questions, and cross product will bring much bigger numbers, so this technic might confuse you.

By the way lcm of 4 and 5 is already 20

Hope it helps!

5 0
3 years ago
Other questions:
  • What is the interquartile range of the data 100,120,130,188,196,220,265,300
    8·1 answer
  • 8x^-9+(-3x^-3y-2)(5/x^6y-2)
    6·1 answer
  • W/3-5=3 <br> can someone help me in this question
    14·2 answers
  • 2.8 divided 68.32 that's the homework
    12·2 answers
  • One number is 11 less than the other number. If their sum is increased by 8, the result is 71. Find the numbers.
    12·1 answer
  • Please help, and get explanation but please make sure your correct tysm!
    12·2 answers
  • Which ordered pair is a solution of the system 3x+y=-3 and y=x+5?
    12·1 answer
  • Which ratio is equal to 1 1/3 :2​
    9·1 answer
  • Susan is mailing packages. Each small package costs her $2.30 to send. Each large package costs her $3.20. How much will it cost
    10·1 answer
  • Did i get any wrong? if did than plz correct me, if not then plz tell me, will mark brainliest ​
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!