Given:
Sample size, n = 40
Sample mean, xb = $6.88
Population std. deviation, σ = $1.92 (known)
Confidence interval = 90%
Assume normal distribution for the population.
The confidence interval is
(xb + 1.645*(σ/√n), xb - 1.645*(σ/√n)
= (6.88 + (1.645*1.92)/√40, 6.88 - (1.645*1.92)/√40)
= (7.38, 6.38)
Answer: The 90% confidence interval is (7.38, 6.38)
Answer:
1) 3 liters left
2) 9 liters of blue paint
Step-by-step explanation:
1) 1/5 * 15 = 3
2) 3 liters of blue paint for each 8 liters.
24/8 * 3 = 9
15g
if you had 17 dollars and gave away two dollars you'd have 15 dollars left. Samer if you have 2g's, whatever those are:)
Answer:
percentage of seventh graders on the team is 20%
Step-by-step explanation:
given data
total girl = 25
soccer team = 5
to find out
percentage of seventh graders on the team with two different way
solution
we first make here a tape diagram
there in begin by divide the tape diagram into 5 equal part
and Each part represent 5 girls
so divide the 100% into 5 equal sections as show in figure below
and
another way is
percentage of seventh graders on the team is = 
× 100%
percentage of seventh graders on the team is 20%
Answer:
a and b are both -6
Step-by-step explanation:
a. 0-6 over 5-4
-6/1=-6
b. -10-(-4) over -2-(-3)
-10+4 over -2+3
-6 over 1=-6
Hope this helps :)
