Answer:
(a) 1/2
(b) 9/10
Step-by-step explanation:
Probability is given by number of possible outcomes ÷ number of total outcomes
(a) Number of possible outcomes = 5 questions, number of total outcomes = 10 questions
Probability (I answer all 5 problems correctly) = 5/10 = 1/2
(b) Probability (I answer at least 4 of the problems correctly) means I either answer 4 of the problems or all 5 problems correctly = 4/10 + 5/10 = 9/10
Answer:
.
Step-by-step explanation:
We use the Venn diagram to calculate the desired probabilities.
Note that there are 6 possible results in the sample space
S = {1, 2, 3, 4, 5, 6}
Then note that in the region representing the intercept of A and B there are two possible values.
So
In the region that represents event A there are 4 possible outcomes {4, 5, 1, 2}
So
In the region that represents event B there are 3 possible outcomes {1, 2, 6}
So
.
Now
Answer:
3
Step-by-step explanation:
add up all data values to get the sum count the number of values in your data set divide the sum by the count
Answer:
New Cost of item is
Step-by-step explanation:
Given:
Original Cost of item =
Item was marked down by
To Calculate Cost after marked down we need to multiply original cost by 50 and then divide by hundred.
Cost after marked down =
Now New cost of the item is calculated by Subtracting Cost after marked down by Original Cost of item.
New cost of the item =