Use the standard normal table to find the z-score that corresponds to the given percentile. if the area is not in the table, use the entry closest to the area. if the area is halfway between two entries, use the z-score halfway between the corresponding z-scores. if convenient, use technology to find the z-score. upper p 8p8

Using the standard normal table, it is found that the z-score corresponding to the upper p8 is z = 1.405.

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In a normal distribution with mean and standard deviation , the z-score of a measure X is given by:

A similar problem is given at link

13

step-by-step explanation:

169-1=168

168-3=165

165-5=160

160-7=153

153-9=144

144-11=133

133-13=120

120-15=105

105-17=88

88-19=69

69-21=48

48-23=25

25-25=0

since it took 13times to completely subtract it hence its square root is 13

4/6 = 2/3

so it should take 3/3 hours per man. so 9 hours is the answer 3*3 =9

step-by-step explanation: