Answer:
Correct options are A,B,D:
- The sample needs to be random, but we don't know if it is.
- The actual count of community residents who received the concert brochure by mail is too small.
- n(1 minus p‐hat) is not greater than 10.
Step-by-step explanation:
Concert marketing: The college’s performing arts center wanted to investigate why ticket sales for the upcoming season significantly decreased from last year’s sales. The marketing staff collected data from a survey of community residents. Out of the 110 people surveyed, only 7 received the concert brochure in the mail.
I'm not in college so take what I say with a grain of salt but to figure that out first I found the range of 13,200 and 3,000 or basically subtracted 3,000 from 13,200 to get 10,200 so it's value went down 10,200 dollars worth of value in six years, next I divided 10,200 by six because it was six years. To get a rate of change of 1,700 dollars worth of value each year. So the answer is an average rate of 1,700 dollars during those six years or 1.28%
The answer would be D. This us because all of the other numbers are odd with one even number. This would make it NOT in the line/cluster of other numbers. Hope this helps! <3
Answer:
the open and closed circles are reversed and the graph of f(x)=ceil(x) i. e. least integer function shifts up.
Step-by-step explanation:
the explanation to this question could be clearly seen from the graph of these two functions.
as for 0 ≤x<1 the floor function takes the value 0 everywhere and it has closed brackets at 0 and open brackets at 1, while for 0<x≤1 the ceiling function takes the value 1 and it has open brackets at 0 and closed brackets at 1 similarly the graph could be extended in the whole real line.
Answer:
50 marbles in box a
Step-by-step explanation:
if one box has 50 and another 40, when you take away 5 from box a there will be 45 and 45 and in total there are still 90 marbles. Your welcome. Pls mark brainliest