Answer:
A value two standards deviation from the mean is more likely to occur than a value three standard deviations from the mean.
Step-by-step explanation:
Standard deviation is a quantitative measure of the variability of traits of the subjects in a given population. These traits can range from age, height, weight e.t.c. This deviation is brought about by extreme or abnormal conditions, which is the reason why two deviations is more likely to occur than three deviations.
Moreover, going by the provisions of the empirical rule, If data comes from a population that is approximately symmetrical;
95% of the data will fall within two standard deviations.
99.7% will fall within three standard deviations
Find the attachment below.
Nevertheless, in a symmetrical distribution most of the data values fall around the mean. Two standard deviations is closer to the mean than 3 standard deviations hence more likely to occur.
Answer:

Step-by-step explanation:
Let
x ---> the number of years
y ---> the amount in the account balance
Plan A
we have a linear equation of the form

where
The slope is equal to

The y-intercept or initial value is

substitute

For x=10 years
substitute

Plan B
we have a exponential growth function of the form

where

substitute


For x=10 years
substitute

Find the difference of the two account balances after 10 years

A is the correct answer i'm pretty sure
Answer: p-value is 0.016.
Step-by-step explanation:
Since we have given that

Sample mean = 19.4
Sample size n = 50
Standard deviation = 2
We need to find the test statistic value which is given by

p-value is given by

Hence, p-value is 0.016.