Answer:
C. 2.937
Step-by-step explanation:
Given the following :
H0 : p = 0.25
H1 : p > 0.25
Number of observations (n) = 647
p' = 30% = 0.3
SD = sqrt[(p(1 - p) / n)]
1 - p = 1 - 0.25 = 0.75
SD = sqrt[(0.25 * 0.75) / 647]
SD = sqrt[0.0002897]
SD = 0.0170234
Z = (p' - p) / SD
Z = (0.3 - 0.25) / 0.0170234
Z = 0.05 / 0.0170234
Z = 2.9371187 = 2.937
Correct answer is B.
The diagonals of rhombus are perpendicular.
A square and rectangle are parallelograms. The diagonals of a square are perpendicular, and the diagonals of a rectangle are not perpendicular.
Therefore, this property <span>is always true for a rhombus but not always true for a parallelogram.</span>
put the formula of sequence up to 30term
Answer:
the missing value is 44
Step-by-step explanation:
let the missing value be x
we can solve this by expressing both ratios as rational expressions
11:4 = x:16
(cross multiply the denominators to eliminate them)
(11)(16) = (4)(x)
4x = 176
x = 176 / 4
x = 44
hence the ration is
11:4 = 44 : 16
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