Aboat traveled 3 hours and coverd 96 km. later that day, the boat went another 80 km itn 2.5 hours . find the average of the speed boat hurry pl a) 26.6 km/h b) 32 km/h c) 38.4km/h d) 64km/h

Average Speed = Total Distance / Total Time

Total Distance = 96 km + 80 km = 176 km

Total Time= 2.5 hours + 3 hours = 5.5 hours

Average Speed = 176 / 5.5

Average Speed = 32 km/hour

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;