Answer:
3, 4, 8
Step-by-step explanation:
Answer:
The lower bound of the 80% confidence interval of the average typing speed of a student of this college is of 68.516 words per minute.
Step-by-step explanation:
We have the standard deviation for the sample, which means that the t-interval is used to solve this question.
The first step to solve this problem is finding how many degrees of freedom, we have. This is the sample size subtracted by 1. So
df = 20 - 1 = 19
80% confidence interval
Now, we have to find a value of T, which is found looking at the t table, with 19 degrees of freedom(y-axis) and a confidence level of . So we have T = 1.328
The margin of error is:
In which s is the standard deviation of the sample and n is the size of the sample.
The lower end of the interval is the sample mean subtracted by M. So it is 70 - 1.484 = 68.516 wpm.
The lower bound of the 80% confidence interval of the average typing speed of a student of this college is of 68.516 words per minute.
Answer:
Step-by-step explanation:
Let initial number of plants =100
Increase I year 60
Number after 1 year 160
Increase IIyear 60% 96
Number after II year 256
Increase in III year 60% 153.6
and so on
In general if t is number of years and N number of plants after n years
the expression would be
In other words, the expressions wouldbe the same as amount after t years of compound interest.
Answer:
y=1/10 times 5
Step-by-step explanation:
you would times by 5 on both sides
The parentheses because it should be PEMDAS which is Parentheses,Exponents,Multiplication,Division,Addition, and Subtraction