In how many ways can Joseph, Michael, Chris, Katherine, Rebecca and Kyle stand in a line?

720

Step-by-step explanation:

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We can use 6 people without repetition, which means we simply have to use counting principle 1.

A number of n objects can be arranged in n! ways.

Total number of combinations possibles = 6! =720

answer: .64

step-by-step explanation

set up the formula for standard deviation for this set of numbers, then simplify

answer:   x = 3 + √11     and     x = 3 - √11

step-by-step explanation:

x² - 6x + 9 = 11

(x - 3)² = 11

x - 3 = ±√11

    x = 3 ± √11

x = 3 + √11     and     x = 3 - √11