Answer:
14b
Step-by-step explanation:
2×7=14
Just put the "b" after 14
Answer:
Step-by-step explanation:
a) Estimate for population mean = Sum/n =
b) Variance = 0.099208
Std dev = 0.314974
Std error = 0.0950
For 95% margin of error = 1.96*Std error
=0.1861
Confidence interval =
Interpretation of confidence interval:
A) if repeated samoles are taken, 95% of them will have a sample pH of rain water between [ ] & [ ].
For 99% CI, z value = 2.59
Conf interval = (4.6790, 5.1710)
C)if repeated samoles are taken, 99% of them will have a sample pH of rain water between [ ] & [ ].
As the level of confidence increases l, the width of the interval[ increases] this makes sense since the [ margin of error] [increases]
Answer: $200
Step-by-step explanation
Principal = $2000
Rate = 15%
Time = 8 months = 8/12 = 2/3 years
Interest = Principal × Rate × Time
= 2000 × 15% × 2/3
= 2000 × 15/100 × 2/3
= $200
The interest is $200
Answer:
Step-by-step explanation:
- you are pretty much just factoring throughout.
- you can also plug in numbers
- or use the quadratic equation
I'll be using the quadratic equation
Answer:
answer is 26.6%
Step-by-step explanation:
i first converted the fraction "40/150" to a decimal by dividing 40 by 150
40 divided by 150 is .26 (rounded)
and then i did .26 times 100
which gave me 26.6
:P hope this helped even doe im kinda late-