Answer:
D
Step-by-step explanation:
Not necessarily. Consider the series
and
. Here
.
The first series converges by the alternating series test, which says
converges if
is a decreasing sequence and converges to 0. This is the case, as
as
, and each term is decreasing. (Indeed the series converges to
.)
On the other hand, the second series is a classic example of a divergent sum.
Answer: 0.0228 .
Step-by-step explanation:
Given, IQ scores are approximately normally distributed with a mean of 100 and standard deviation of 15
Let X denotes the IQ score.
Then, the proportion of people with IQs above 130 is
Hence, the proportion of people with IQs above 130 is 0.0228 .
Answer:
50 hundredths
Step-by-step explanation:
20 + 30= 50