X= -46 and y = -40 I worked it out I might be wrong
Answer:
They can either decrease the confidence level or increase the sample size, that is, survey more students.
Step-by-step explanation:
The width of a confidence interval is given by:
In which z is the critical value correponding to the confidence level(higher confidence level, higher z is), is the standard deviation of the population and n is the size of the sample.
The students realize that this interval contains a large margin of error. What can they do to make a narrower interval?
Looking at the formula for M, they can either decrease the confidence level or increase the sample size, that is, survey more students.
Answer:
the answer is 131 because if you multiply 20 by 8 is 190 then you divide 1/4 by 190 and you get 131
Step-by-step explanation:
It's a kite or a rhombus.
Answer: 1145 feets
Step-by-step explanation:
The total feet of streamer that Shirley have to decorate with will be the addition of the total roll of blue streamer plus the total roll of green streamer. This will be:
= 5(93) + 8(85)
= 465 feet + 680 feet
= 1145 feets of streamer.
is 93 feet long and each roll of