b is the answer hope this help
Answer:
P(number greater than 3) = 
Step-by-step explanation:
The Probability of getting a number greater than 3 means the possibility of getting 4 or 5 or 6
That is
P(number greater than 3) = P(getting 4) + P(getting 5) + P(getting 6)
On substituting the values from the table ,
we get
P(number greater than 3) = 
P(number greater than 3) = 
Thus if the number cube is tossed once, P(number greater than 3) is 
Answer:
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Answer:
75
Step-by-step explanation:
Average needed to get grade C = 70
Average = Total Amount / No of Items.
No of items = 4
therefore Total needed = 70 x 4 = 280
current total score = 66.75 + 66 + 72.25 = 205
the fourth test minimum score = 280 - 205 = 75