Use an Euler diagram to determine whether the syllogism is valid or invalid.Some TV shows are comedies.All comedies are hits. ? Some TV shows are hits.
A. Valid
B. Invalid
Answer: A
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Provide an appropriate response.Which of the following statements concerning the standard normal curve is/are true (if any)?a. The area under the standard normal curve to the left of -3 is zero.b. The area under the standard normal curve between any two z-scores is greater than zero.c. The area under the standard normal curve between two z-scores will be negative if both z-scores are negative.d. The area under the standard normal curve to the left of any z-score is less than 1.
A. b, d B. a, c C. a, b D. a
Find the probability.A family has five children. The probability of having a girl is 1/2. What is the probability of having exactly 2 girls and 3 boys?
A. 
B. 
C. 
D. 
Simplify the square root. Assume all variables represent positive real numbers.
A. 
B. 
C. 
D. 
Use the information given about the angle ?, 0 ? ? ? 2?, to find the exact value of the indicated trigonometric function.sec ? = - 
, 
< ? < ?Find sin 
.
A. 
B. 
C. - 
D. - 