CÂU HỎI 13 (SINGLECHOICE)
* Đánh dấu
Suppose that a sample of size n = 25 is selected at random from a normal population with a mean of 100 and a standard deviation of 10. What is the probability that the sample mean doesn't fall in the interval
[95,1107
0.0062
0.309
None of the other choices is correct
0.841
0.0048
CÂU HỎI 14 (SINGLECHOICE)
What are the median and mode of the following series: 2; 2; 2; 4; 4; 5; 5; 6; 8; 11; 12; 16; 18?
5 and 2
2 and 5
2 and 6
5.5 and 2
Từ Đánh dấu
