All ova, a female reproductive egg, are ____
a. X chromosome
b. Y chromosome
c. XY chromosome
d. XX chromosome
Answer: A
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In this computation, Population mean = 
you are adding up the ______.
A. ?, n B. ? C. N's D. X's
Any event that follows a response and decreases the likelihood of the response occurring again is referred to as
a. negative reinforcement. b. punishment. c. positive reinforcement. d. secondary reinforcement.
Joan begs her father for a frosted cookie at the bakery but he refuses to buy her one. Joan continues to whine and complain until finally he breaks down and gets her the cookie. For Joan, the cookie is a ________
a. positive punisher b. positive reinforcer c. negative reinforcer d. negative punisher
Like stratified random sampling, quota sampling ______.
A. is a probability sampling method B. is an unbiased sampling method C. ensures representation of key strata D. requires a sampling frame