use the frequency table to find the probability of at most 4 responses received to this week's newspaper editorials.
1 answer:
Answer:
B
Step-by-step explanation:
To get probability of AT MOST 4 responses means all the probabilities Equal to or Less Than 4.
<u>From the table, that is probability of 0, 1, 2, 3 or 4</u>. <em>(OR in probability means adding)</em>
<em>Hence, we add the number of editorials for P=0,1,2,3, and 4 and then divide by total number of editorials.</em>
Answer choice B is right.
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Answer:
Final answer is c. 15
Step-by-step explanation:
We need to find about what is the first term in the sequence for which d = -2 and a7 = 3
We will use nth term formula of arithmetic sequence.
we have been given a7 that means 7th term is 3
so plug n=7, d=-2 and a_n=3 into above formula
Hence final answer is c. 15