Help me please!!! if the probability of randomly drawing a number ending in 7 is 68/197, what the probability of not drawing a number in 7

total draws is 197 and the probability of getting 7 is 68 so the probability of not drawing 7 is obtained by subtraction of 68 from 197 which is 129 over the total draws or 1-68/197=129/197

129/197

Step-by-step explanation:

probability = no . of times obtained selecred

event / no. of total out comes in experiment

drawing a number ending in 7 = 68/ 197

not drawing a number in 7 = 197-68/197

=129/197

d. 24+-0.114

step-by-step explanation:

the question requires us to calculate the approximate 95% confidence interval for the mean number of ounces of ketchup per bottle in the sample given the following statistics;

sample mean = 24

standard deviation, σ = 0.4

sample size , n = 49

the confidence interval for a population mean is calculated using the formula;

sample mean ± z-score*(σ/sqrt(n))

the z-score associated with a 95% confidence interval, from the standard normal tables, is;

1.96

substituting these values into the formula;

24 ± 1.96*(0.4/7)

= 24 ± 0.112

from the alternatives given, choice d is closest to the above expression;