Wednesday

March 4, 2015

March 4, 2015

Posted by **mysterychicken** on Thursday, June 20, 2013 at 4:48pm.

1.Research subjects that are divided up based on gender, age, etc. to be compared to people of the same group is what type of design experiment?

2. A biologist collects a sample of 50 snakes. The snakes have a mean length of 25 cm with a standard deviation of 5 cm. If the mean length for the population of snakes is 27 cm, what is the probability of a sample having a mean length less than 27?

3. A sample of size 35 is taken from a uniformly distributed population. The mean of the population is 40 and the standard deviation is 3. Find the standard deviation of the sample.

Please help me with these!

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