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anygoal [31]
3 years ago
6

Suppose you just received a shipment of fifteen televisions. Four of the televisions are defective. If two televisions are rando

mly​ selected, compute the probability that both televisions work. What is the probability at least one of the two televisions does not​ work?
Mathematics
1 answer:
emmasim [6.3K]3 years ago
6 0

Answer:

27% chance a tv is defective. 13% chance one at least one doesn't work.

Step-by-step explanation:

100/15

4X6.67=26.67

*NOT 100% JUST TRYING TO HELP*

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An isosceles triangle with legs of 8 cm and a base of 10 cm in length has a median drawn
bazaltina [42]

Answer:

89 cm and vertex 8cm length of the seng.ent 10 cm

7 0
1 year ago
how many unique triangles can be made where one angle measures 98 degrees and another angle is an obtuse angle
aliya0001 [1]
None because it is impossible for any triangle to have more than one obtuse angle.
7 0
2 years ago
Read 2 more answers
A bag contains five red marbles, fifteen black marbles, and ten white marbles. You pick one without looking. What is the probabi
aliya0001 [1]

Answer:

Step-by-step explanation:

5 red

15 black

10 white

altogether the is 30 marbles so that means it is 'out of'  30

and because the is 5 red it would be 5/30

and because the is 10 white it would be 10/30

that should be the answer but if you have to work the total all together then it would be 15/30

hope this helps :)

6 0
3 years ago
Which of the following shows the correct value of 50
Orlov [11]

Answer:

None of the options is correct

Step-by-step explanation:

It is important to know that he expression a < x < b means that x is greater than a and less than b. So, for finding the correct value let's analyse each option.

A. 4 < 50 < 5

50 is greater than 4 but it is not less than 5, so, option A is incorrect.

B. 7 < 50 < 8

50 is greater than 7 but it is not less than 8, so, option B is incorrect.

C. 8 < 50 < 9

50 is greater than 8 but it is not less than 9, so, option C is incorrect.

D. 10 < 50 < 11

50 is greater than 10 but it is not less than 11, so, option D is incorrect.

Thus, none of the options is correct.

8 0
3 years ago
Amanda earned a score of 940 on a national achievement test that was normally distributed. The mean test score was 850 with a st
hichkok12 [17]

Answer:

lower than Amanda:  816 students

Step-by-step explanation:

An equivalent way in which to state this problem is:  Find the area under the standard normal curve to the left (below) 940.

Most modern calculators have built in distribution functions.

In this case I entered the single command   normalcdf(-1000,940, 850, 100)

and obtained 0.816.

In this particular situation, this means that 0.816(1000 students) scored lower than Amanda:  816 students.

6 0
2 years ago
Read 2 more answers
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