Answer:
y+30
Step-by-step explanation:
the sum of the numbers is 15y
the new sum after increase each number by 30 is 15y+450
the new mean 15y+450/15
= y+30
Answer:
121
Step-by-step explanation:
Given data as per the question
Standard deviation =
= 840
Margin of error = E = 150
Confidence level = c = 95%
For 95% confidence, z = 1.96
based on the above information, the minimum number of clients surveyed by the travel agent is


= 120.47
= 121
hence, the 121 number of clients to be surveyed
Therefore we applied the above formula to determine the minimum number of clients
Answer: 39
Step-by-step explanation: x=13. so 5-2=3 x 13 = 39
espero que esto ayude :)
Answer:
3
Step-by-step explanation:
Because if you take 3.4 you round that 4 down to get just 3.
None of the above
0.6 would be equivalent to 0.60 and 0.600 and 0.600000...but none of the above answers