# Posts by cle

Total # Posts: 7

**Probability**

Can someone explain me how to find E[X]? thanks in advance

**Probability**

Why yes for the last one?

**Probability**

I think I'm doing a silly error in the trasformation of the sum to get the final answer. Can you please show me how did you do? (answer 3)

**Probability**

From where did yoy get 210 (in the second answer)? And can please you write the passage for point 5?

**Math**

$120

**Math**

A punch recipe says to mix 4 cups pineapple juice, 8 cups orange juice, and 12 cups seltzer in order to make 18 servings of punch. A) How many cups of each pineapple juice do you need to make 108 cups of punch? I would appreciate it if you can show me how to do this problem

**Probability**

Can someone explain me how to find E[X]? thanks in advance

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