The tree diagram represents an experiment consisting of two trials. P(A and D)=? I can't attach a picture so I'll try and make it simple.
.5 - A - .4 - C
-.6 - D
.5 - B - .3 - C
- .7 - D
Hope this makes sense.

answer: sine

step-by-step explanation:

mx+89b(-98)nb

step-by-step explanation:

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;

8(1/6)

step-by-step explain:

49/6= 48

8 (1/6)