Step-by-step explanation:
Nickels = 112 * 3 / (3 + 4 + 7) = 24.
Answer:
ans:- 14
Step-by-step explanation:
let length = x
so, width= 2x -1
perimeter= 2(l +b)
82 = 2(x+ 2x-1)
41 = 3x - 1
3x = 42
x = 14
Answer:
d.)The experimental units are assigned randomly to exactly one control group and one or more treatment groups
Step-by-step explanation:
Completely randomized design can be regarded as a type of experimental design in which the experimental units are assigned randomly for different treatments. This experimental design is utilized in cases whereby experimental units are seen to be “uniform" this implies that no uncontrolled factor in the experiment. completely randomized designs are engaged in studying effects of one primary factor by ignoring other nuisance variables it perform comparison of values of a response variable taking into account of the different levels of that primary factor. It should be noted that in completely random design, the experimental units are assigned randomly to exactly one control group and one or more treatment groups
The type of figure that is quadrilateral fxyh is a trapezoid
The probability that a transmission will last less than 14 years is 5%
Step-by-step explanation:
Given
Mean = 16 years
SD = 1.2 years
We have to find the probability that a transmission will last less than 14 years
First of all we have to find the z-score of the value
Z-score is given by:
We will use the z-score table to find the probability of being less than 14
So,
From z-score table we get the value for -1.6666
P(z = -1.666) = 0.04846
= 0.04846* 100
= 4.846
Rounding off to nearest percentage
5%
Hence,
The probability that a transmission will last less than 14 years is 5%
Keywords: Probability, z-score
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