STATISTC 111 Lecture Notes - Lecture 15: Random Variable
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P exactly r heads in n coin tosses ncr2n die. 8 9 10 11 ex 1 find the probability of exactly 3 heads in 5 tosses. 32 find the probability of not getting 3 heads let e exactly 3 heads in 5 tosses not not getting exactly 3 heads in 5 tosses. 2 ex 2 rule find the probability of rolling a 2 dice total of 7 or 11 use table. I2 let event a roll let event b roll a 7 an 11. A and b are mutually exclusive simultaneously cannotbothoccur. 2 if events a and b are mutually exclusive then. 36 t ex 3 find the probability of 3 heads in 3 coin tosses. 3 cointoss s hhh hht hth thh tth tat att ttt n s _8. 3 if events a and b are independent then piaand b pa pcb. Eva pob y let a heads on a coin let b roll a 6 with a die.
