A confidence interval tells us how many percents we are confident about the range of a parameter. In this problem, <span>a 95% confidence interval for the mean number of hours spent relaxing or pursuing activities they enjoy was (1.38, 1.92). That means we're 95% confident that the Americans spend from 1.38 hours to 1.92 hours per day on average relaxing or pursuing activities they enjoy. In other words, 95% of the samples of the same size would have a mean number of hours relaxing or pursuing activities they enjoy between 1.38 to 1.92.</span>
F(n) = 1st term - common difference (n - 1)
The operation is subtraction because the sequence is decreasing.
n = number of the term you are looking for
1st term = 1st number in the sequence, in this case, 16
common difference = difference between one number to the next
f(n) = 16 - 1(n-1)
Assuming we are looking for the 5th term.
f(5) = 16 - 1(5-1)
= 16 - 1(4)
= 16 - 4
= 12 * as you can see, 12 is the 5th term of the sequence.
If you are looking for the equivalent of the nth term, simply substitute n by the number you are looking for and solve the equation.
15 + 1; 14 + 2; 13 + 3; 12 + 4; 11 + 5; 10 + 6; 9 + 7; 8 + 8
Answer:
x=6
Step-by-step explanation:
x is the geometric mean of 3 and 12.
3 · 12 = x²
x=6
Answer:
<em>The probability that she uses gray or yellow is 0.93</em>
Step-by-step explanation:
Suppose, 
, 
and 
represent the events of using gray, blue and yellow colors respectively.
So, 
and 
The probability that she uses gray and yellow is 0.62 , that means 
<u>The formula we will use here:</u> 
According to the above formula.....
So, the probability that she uses gray or yellow is 0.93
