Jessiie saves $6 each week. In how many weeks will she have saved at least $50
2 answers:
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Answer:
a and b both are true.
Step-by-step explanation:
Given : A coin is tossed 10 times.
To find : True or false, and explain ?
Solution :
(a) The chance of getting 10 heads in a row is
Coin has two face head and tail.
The probability of getting head is
The probability of getting 10 heads in a row is
The chance of getting 10 heads in a row is is true.
(b) Given that the first 9 tosses were heads, the chance of getting 10 heads in a row is .
The probability of getting 10 heads in a row is
The probability of getting 9 tosses were heads is
Given that the first 9 tosses were heads, the chance of getting 10 heads in a row is given by,
Given that the first 9 tosses were heads, the chance of getting 10 heads in a row is is true.
Answer:
Let X be the number of customer purchased coffee
Let Y be the number of customer purchased donuts
Then is the number of customer purchased both coffee and donuts
is the number of customer purchased both coffee or donuts
<em><u>The Number of customers purchased only Coffee:</u></em>
Number of customers purchased only donuts =n(X -Y)
n(X-Y) = 59 -16
n(Y - X) = 43
<em><u>The Number of customers purchased only donuts:</u></em>
Number of customers purchased only donuts =n(Y -X)
n(Y - X) = 39 -16
n(Y - X) = 23
<u>The Number of customers did not purchase either of these items:</u>
Number of customers did not purchase either of these items =
First lets find
=
= 28
