Answer:
105
Step-by-step explanation:
11 x 9 + [15 - 9]
First is brackets
= 11 x 9 + 6
then multiplication
= 99 + 6
then addition
= 105
Answer:
The answer is -1.2
Step-by-step explanation:
Recalling the standard deviation formula,
we have : σ = sqrt[ P * ( 1 - P ) / n ]
Where sqrt = square root
n = Number of derivative
Therefore,:
if, H0: p is not 48% vs H1: p1 = 48%
standard deviation is:
σ = sqrt[ P * ( 1 - P ) / n ] = sqrt[ .48*.49/900 ] = .01666333+
z -score is (p-P)/σ
= (.51-.53)/.01666333
The answer therefore = -1.2
ICONCLUSION:
It can therefore be concluded that there is statistical evidence that the proportions are different. H0 accepted in the hypothesis.
Melinda is saving at the rate of 60/5 = $12 per week
Marcus is saving $14 per week
Difference is $2
Melinda is savinf $2 less than marcus each week
Ok well since it said “how much more we subtract 11-7=4