What is true about the following line of R code? rnorm(10, 11, 12)单项选择题

A

We do not know what the size of the generated sample will be.

B

It generates a sample of size 10.

C

It generates a sample of size 12.

D

It generates a sample of size 11.

登录即可查看完整答案

我们收录了全球超50000道真实原题与详细解析,现在登录,立即获得答案。

类似问题

X~N(3, 1) and Y~N(3, 2),  then

Question at position 51 The time to complete a standardized exam is approximately Normal with a mean of 70 and a standard deviation of 10 minutes. How much time should be given to complete the exam so that 80% of the students will complete the exam in the time given?78.4 minutes92.8 minutes84.0 minutes61.6 minutes79.8 minutes

Question at position 50 A soft-drink machine can be regulated so that it discharges an average of ? oz per cup. If the ounces of fill are Normally distributed with a standard deviation of 0.4 oz, what should ? be set at so that 98% of the 6-oz cups will not overflow?6.606.826.006.185.18

Question at position 47 Items produced by a manufacturing process are supposed to weigh 90 grams. The manufacturing process is such, however, that there is variability in the items produced and they do not all weigh exactly 90 grams. The distribution of weights can be approximated by a Normal distribution with a mean of 90 grams and a standard deviation of 1 gram. About what percentage of the items will either weigh less than 87 or more than 93 grams?6%0.3%0.15%94%99.7%

更多留学生实用工具

加入我们，立即解锁 海量真题 与 独家解析，让复习快人一步！