The mean, median, and mode are all the same value in a _____ ...

[mcmcdaniel]

The mean, median, and mode are all the same value in a _____ distribution
 
  a. skewed c. bimodal
  b. normal d. asymmetrical

Question 2

When the probability that an experimental result is due to chance is lower than alpha, the researcher should _____ the null hypothesis.
 
  a. reinstate c. fail to reject
  b. accept d. reject

[Zebsrer]

Answer to Question 1

B
All measures of central tendency are equal in the normal curve.

Answer to Question 2

D
The null hypothesis states that chance (and not the independent variable) is responsible for the results. If the probability of this is less than alpha, it is very unlikely that chance is responsible for the results, and the null hypothesis should be rejected.