Answer:
a. the Student's t-distribution with 124 degrees of freedom
Step-by-step explanation:
We have no information about the standard deviation of the population, just for the sample, which means that the student's t-distribution is used.
Degrees of freedom
Sample size subtracted by 1.
125 households were sampled.
125 - 1 = 124 degrees of freedom.
So the correct answer is:
a. the Student's t-distribution with 124 degrees of freedom
Answer:
The highest possible average is 348
Step-by-step explanation:
we know that
No more than 60 means -----> maximum 60 ( less than or equal to 60)
To find the possible average using proportion
Remember that the average is the number of hits in 1,000 times at bat
If the average is 300 with maximum 60 times at bat
then
The number of hits is 60*300/1,000=18 hits
If the player gets 5 hits in her next 6 times at bat
then
In 66 times at bat the number of hits is 18+5=23 hits
Find out the average
Let
x ----> the average
Answer:YES
Step-by-step explanation:
Answer:
The solution of the given system is (x,y) = (1,4)
Step-by-step explanation:
Here, the given system of equation is:
x = -3 + y
26 x - 5 y = 6
Now, substitute x = -3 + y in the second equation , we get
26 x - 5 y = 6 ⇒ 26 (-3 + y) - 5 y = 6
or, 26(-3) + 26(y) - 5y = 6
⇒ - 78 + 26 y - 5y = 6
⇒ 21 y = 84
⇒ y = 84 / 21 = 4 or , y = 4
So x = -3 + y = -3 + 4 = 1
Hence, the solution of the given system is (x,y) = (1,4)
