A bag contains 3 red. 3 white and 3 green balls. One ball is taken out of the bag at random. What is the probability that the ball drawn is -
(1) red. (2) not red (3) either red or white.​ from chapter probality 10 ssc​

The probability that the ball is red is 33.33%, it is not red 66.66%, and red or white is 66.66%.

Step-by-step explanation:

Given that a bag contains 3 red, 3 white and 3 green balls, to determine, if one ball is taken out of the bag at random, what is the probability that the ball drawn is (1) red, (2) not red, or (3) either red or white, the following calculations must be performed:

1)

3/9 = 0.333 x 100 = 33.33%

2)

6/9 = 0.666 x 100 = 66.66%

3)

6/9 = 0.666 x 100 = 66.66%

Therefore, the probability that the ball is red is 33.33%, it is not red 66.66%, and red or white is 66.66%.

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;