One ruler is 12 inches and 12 inchs= 1 foot so 5 rulers equal 5 feet
Answer:
Step-by-step explanation:
4x^2=12
x^2=12/4
x= root 3
2x+y=13 and x+2y=6 what is the valve of 2x+2y=4
2/3x = 6
Multiply both sides by 3x
2 = 6.3x
2 = 18x
x = 2/18
x = 1/9
Answer:
Interval is given with 97% confidence. Thus there is 3% probability that interval is not true.
Step-by-step explanation:
In Statistics, estimated intervals are given with some confidence level. In this example person develop the interval with 97% confidence.
<em>Statistically</em>, this means that the person can be 97% sure (not 100%) that population mean is 74.3 < µ < 78.3. There is still 3% probability that population mean falls outside of the interval.
Small sample size may also lead wrong estimates.
