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20 POINTS MARKS BRAINLIEST!

The answer to this question is the last choice “11/25”

Step-by-step explanation: To find the answer you add up all the possible choices which is 31 + 33 + 9 + 2 to get 75. Then we see there is a frequency of 33 to have the A blood type. So it will turn into the fraction 33/75 which simplifies into 11/25.

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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;

the answer is a.

step-by-step explanation:

in three games of golf, alex shot two under par four times.