Answer:
21.759
Step-by-step explanation:
Given that :
Mean (m) = 25
Standard deviation (s) = 12.5
Sample size (n) = 40
α = 90%
The confidence interval is obtained using the relation:
Mean ± Zcritical * s/sqrt(n)
Zcritical at 90% confidence interval = 1.64
25 ± 1.64 * (12.5/sqrt(40))
Lower boundary : 25 - 1.64(1.9764235) = 21.75866546
Upper boundary : 25 + 1.64(1.9764235) = 28.24133454
(21.759, 28.241)
Hence, lower bound of confidence interval is : 21.759
A standard number cube has 6 sides, and so the numbers are:
1,2,3,4,5,6
P, is any of those numbers that <em>are not 2</em>.
2 is one of the numbers in 6, and so it is 1/6 of the die.
6/6 - 1/6 = 5/6
C) 5/6 is your chance of getting a number that is not 2
hope this helps
X^2 - 2/3x + 1/9 is the answer i belive
Marty's grandmother cans spaghetti sauce. Last year she canned some specifically for Marty. She ended up with 25 quarts full. Marty noticed, however, that a quart of sauce is too much for her meals (she only cooks for herself). If she wants her grandmother to can the sauce in pints this year, how many pint jars should she buy to put it in?
