when coin is flipped 5 times probability is 1/2
so coin heads comes out to be 2.5
This is a binomial distribution with a probability of success = 0.5 (fair coin).
n=10
so
mean = E[x] = np =10*0.5 =5
Note: 6 employees means half of the employees contributed $7.75 each.
6 x $7.75 = $46.50.
To find how much money remains to be collected, subtract $46.50 from $100.
So, $100 - $46.50 = $53.50 is the answer.
Answer:
x + (5x-9)
Step-by-step explanation:
x stands for the number of coins Nancy has
Kevin has 9 less than 5 times what Nancy has, so his part of the expression is 5x-9
To find the total number of coins they have, you have to add Nancy's number of coins x plus Kevin's number of coins 5x-9
x + (5x-9)
But you have to put parentheses around Kevin's 5x-9 so that part of the expression is calculated first, as per order of operations
Answer
3,4,5,5,6,7,7,7,7
Step-by-step explanation:
See the attachment..........
