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Bess [88]
3 years ago
10

A manufacturer knows that their items have a normally distributed length, with a mean of 19.3 inches, and standard deviation of

4 inches. if 18 items are chosen at random, what is the probability that their mean length is less than 18.3 inches
Mathematics
1 answer:
Scrat [10]3 years ago
8 0
Dddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddd
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HELP, I WILL GIVE BRAINIEST IF BEST EXPLANED
olya-2409 [2.1K]

Answer:

-2 + 7x - 3x is your answer

Step-by-step explanation:

8 0
3 years ago
Two angles are complementary. One angle is 5 times as large as the other. What is the measure of each angle?​
Fantom [35]

Answer:

15 and 75

Step-by-step explanation:

complementary - add up to 90 degrees

x+5x=90 degrees

6x=90 degrees

x=90/6

x=15

15*5=75

8 0
3 years ago
I need help please?!!
Rasek [7]
Hope this helps have a nice day:)

3 0
3 years ago
paula spent 3/8 of her allowance on clothes and 1/6 on entertainment. what fraction of her allowance did she spend on other item
MArishka [77]
We have to calculate the fraction of Paula`s allowance that she spent on other items if she already had spent 3/8 on clothes and 1/6 on entertainment. First we have to add: 3 / 8 + 1 / 6 = ( LCD is 24 ) = 9 / 24 + 4 / 24 = 13 / 24. Then : 1 - 13 / 24 = 24 / 24 - 13 / 24 = 11 / 24. Answer: She has spent 11 / 24<span> of her allowance on other items. </span>
3 0
2 years ago
During a 60 minute television program, 25% of the time is used for commercials and 5% of the time is used for the opening and cl
aksik [14]

Answer:

42 minutes

Explanation:

The total amount of anything expressed in percentage is 100%.

The reason for this is that per cent means per hundred.

So, 100% is

100

×

1

100

=

100

×

1

100

=

1

, which is a whole.

Moving to the question, a total of 25% + 5% = 30% of the time is used up by commercials and credits.

The time left for the program is 100% - 30% = 70%.

This is 70% of 60 minutes or

70

100

×

60

=

7

0

1

00

×

6

0

=

Step-by-step explanation:

3 0
3 years ago
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