Answer:
37, 700, 000
Step-by-step explanation:
377(10,000) = 377 x 10,000
= 37, 700, 000
an easy way to see it is to just add the number of zeros from 10,000 to 377. since there are four zeros, you put four zeros behind 377.
<em><u>[it's not mathematical but it helps u see the answer better. and it only works with numbers that start with 1]</u></em>
Answer:
i am not sure but i guess in fraction ans is: 22/9/1 , and in decimal the ans is: 2.444
Normalizing the bounds,
y=186, z = (186-200)/12 = -1.17
y = 210, z = (210 - 200)/12 = 0.83
We want the area of the standard normal between those. Looking it up in the cumulative table,
Ф(1.17) = 0.87900
Ф(0.83) = 0.79673
We need Ф(-1.17) which is 1 - Ф(1.17)
Then the probability we seek is
p = Ф(0.83) - Ф(-1.17) = Ф(0.83) + Ф(1.17) - 1 = 0.87900 + 0.79673 - 1 = 0.67573
Answer: 67.6%
Answer: The point estimate of the population mean is <u>23</u>. The margin of error for the confidence interval is <u>2</u>.
Step-by-step explanation:
The confidence interval for the mean is of the form is given by :-
Given : Lower bound: 
Upper bound :
Then ,the sum of lower and upper bound will be :-
Since
Hence, The point estimate of the population mean is <u>23</u>. The margin of error for the confidence interval is <u>2</u>.
