Question 6 of 10 The following table shows the probability of rolling the numbers 1 through 8
on a fair 8-sided die.
х
1
2
3
45
6
7
8
P(X)
1/8
1/8 1/8 1/8 1/8 1/8 1/8 1/8
What is the standard deviation of the random variable X, "the number that
comes up on the die"?

Using the quadratic formula find the zeros of the given polynomial -5x^2+3x-11

Consider a bag that contains 220 coins of which 6 are rare indian pennies. for the given pair of events a and b, complete parts (a) and (b) below. a: when one of the 220 coins is randomly selected, it is one of the 6 indian pennies. b: when another one of the 220 coins is randomly selected (with replacement), it is also one of the 6 indian pennies. a. determine whether events a and b are independent or dependent. b. find p(a and b), the probability that events a and b both occur.

Solve this 364x-64x=300x and 12(x2–x–1)+13(x2–x–1)=25(x2–x–1)