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Ad libitum [116K]
2 years ago
9

Select the correct answer. A pound is approximately 0. 45 kilogram. A person weighs 87 kilograms. What is the person’s weight, i

n pounds, when expressed to the correct number of significant figures? A. 190 lb B. 180 lb C. 52 lb D. 39 lb.
Mathematics
1 answer:
Serggg [28]2 years ago
3 0

Answer:

A. 190 lb

Step-by-step explanation:

Hope this helps

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A meteorologist who sampled 4 thunderstorms found that the average speed at which they traveled across a certain state was 16 mi
DENIUS [597]

Answer:

The  90 % confidence  interval  for the mean population is (11.176  ; 20.824 )

Rounding to at least two decimal places would give 11.18 , 20.83

Step-by-step explanation:

Mean = x`= 16 miles per hour

standard deviation =s= 4.1 miles per hour

n= 4

\frac{s}{\sqrt n}  =  4.1/√4= 4.1/2= 2.05

1-α= 0.9

degrees of freedom =n-1=  df= 3

∈ ( estimator  t with 90 % and df= 3 from t - table ) 2.353

Using Students' t - test

x`±∈ * \frac{s}{\sqrt n}

Putting values

16 ± 2.353 * 2.05

= 16 + 4.82365

20.824  ;        11.176

The  90 % confidence  interval  for the mean population is (11.176  ; 20.824 )

Rounding to at least two decimal places would give 11.18 , 20.83

4 0
2 years ago
Read 2 more answers
List 75% , 1/6 , 3/8 , and 0.625 from least to greatest . :) PLZ HELP
alexandr1967 [171]
1/6, 2/8, .625, 75% :)))
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3 years ago
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A shipment contains 9 igneous, 7 sedimentary, and 7 metamorphic rocks. If 7 rocks are selected at random, find the probability t
yKpoI14uk [10]

Answer:

75 percent

Step-by-step explanation:

see the thing is

7 0
2 years ago
What is square root of 167?
enot [183]
The square root of 167 would be 12.922847. If you need it rounded to the nearest tenth it would be 12.9

If you need t rounded to the nearest hundredth, it would be 12.92.


Hope this helps :)
7 0
2 years ago
150/250=?/100 I don't know the answer
Sindrei [870]

Answer:

? = 60

Step-by-step explanation:

just cross multiply like the image shows

7 0
3 years ago
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