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monitta
4 years ago
7

Homework Help: According to the article "Are Babies Normal?" by Traci Clemons and Marcello Pagano published in The American Stat

istician, Vol. 53, No. 4, pp. 298-302, the birth weights of babies are normally distributed with a mean of 3320 grams and a standard deviation of 564 grams.
1. What is the probability that the average weight of 13 randomly selected babies is between 3000 grams and 3600 grams? Round your answer to 4 decimal places.
Mathematics
1 answer:
Jlenok [28]4 years ago
6 0

Answer:

Step-by-step explanation:

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Find the value of |-4+3| • 8​
weeeeeb [17]

Answer:

find from the Google

Step-by-step explanation:

find from the Google

3 0
3 years ago
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How are the greater than, less than, and equal to symbols useful?
Snowcat [4.5K]
They are called relation symbols
they tell how something relates to something else

greater than tells ou that the the result must be more than, but not eqal to that numberd so example, we have to have something that flys higher than that bridge (100ft) but it cannot fly 100 or else it will crash

less than tells you that you must be less than, but not euqal to. example
 this thing must be less than 7 feet tall to fit under the doorway, it cannot be 7 feet or else it wont fit

equal to is an exact amount, nothing more or less
we have to have a screw that is this big, nothing more or less



less and greater than is nice since if you found a solution and you wanted to notate it, example
if the naswer is any number less than 10, it would be nicer to write x<10 instead of listing all numbers less than 10 since they could get very close example 9.999999999 forever
greater is the same, any number bigger than 30, you woul dhave to include 30.0000000001 and smaller which is hard, but with the x>30, it is easier

the equals just shows equality, this is equal to this, period
3 0
3 years ago
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# 6 The capacity of a cylindrical fuel tank is 2.5 kl and its height 10 m. What is the area of its base?
Lina20 [59]
<h3>The area of base is 0.25 square meter</h3>

<em><u>Solution:</u></em>

Given that,

The capacity of a cylindrical fuel tank is 2.5 kl and its height 10 m

To find: area of base

<em><u>The volume of cylinder is given as:</u></em>

V = \pi r^2h

The area of base of cylinder is area of circle

Area\ of\ circle = \pi r^2

Therefore,

V = base\ area \times height

From given,

h = 10 m

v = 2.5 kl

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Therefore,

2.5 kl = 2.5 cubic meter

Substitute height = 10 and volume = 2.5

2.5 = base\ area \times 10\\\\ base\ area = \frac{2.5}{10}\\\\ base\ area = 0.25

Thus area of base is 0.25 square meter

5 0
3 years ago
Barbara worked 30 hours last week. She
schepotkina [342]

Answer:approximately  a little more than 32 hours

Step-by-step explanation:

422/30  =  455/x

422x  =  30*455

422x = 13,650

x=32.345971

4 0
4 years ago
Solve the equation using square roots . X^2 +20=4
Savatey [412]
X²+20=4
X²=-16
No number squared can be a negative, so X=4i
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3 years ago
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