n a certain game, playing cards are assigned point values. Aces have the value 1, cards with numbers 2 through have 9 the corresponding point values 2 through 9, and tens, jacks, queens, and kings all have point values of 10. If a single card is drawn at random from a standard deck, what is its expected point value

Suppose 38 lbs of coffee beans are required to produce 2 lbs of farmer's coffee. how many lbs of coffee beans are required to produce 309 lbs of farmer's coffee?

Arandom sample of n = 25 observations is taken from a n(µ, σ ) population. a 95% confidence interval for µ was calculated to be (42.16, 57.84). the researcher feels that this interval is too wide. you want to reduce the interval to a width at most 12 units. a) for a confidence level of 95%, calculate the smallest sample size needed. b) for a sample size fixed at n = 25, calculate the largest confidence level 100(1 − α)% needed.

What is the measure of angle lkj ? round to the nearest whole degree