Answer:
Step-by-step explanation:
Total number of days
The number of days she bought a banana or orange
The probability of buying a banana or an orange is
- P(b or o) = 21/30 = 0.7 = 70%
its the second option on edge
Answer:
The probability is 0.0069
Step-by-step explanation:
First thing to do here is to calculate the z-score
Mathematically;
z-score = (x-mean)/SD/√(n)
where x = 9.1 , mean = 8.4 , SD = 1.8 and n = 40
Plugging these values into the z-score equation, we have;
z-score = (9.1-8.4)/1.8/√(40) = 0.7/1.8/6.325 = 0.0615
Now, we check the standard normal table for P(z > 2.46) = 0.0069
Answer: D).-20
Step-by-step explanation:
Answer:
The total of the 15 tickets would be $240
Step-by-step explanation:
If you divide 48 and 3 you get 16 which is the cost for each ticket and then yuo multiply 16 by 15 and you get 240
