Michael
Michel Can travel 70 mile on one gallon which is 1400 miles on 20 gallons
Laura can only travel 26 miles on one gallon which is 520 miles on 20 gallons
Answer: 0.0304
Step-by-step explanation:
A z-test is a statistical test that is used to determine if two population means are different when the variances are known and the sample size is large. The test statistic is assumed to have a normal distribution, and nuisance parameters such as standard deviation should be known in order for an accurate z-test to be performed.
A z-statistic, also known as z-score, is a number representing how many standard deviations above or below the mean population a score derived from a z-test is.
Therefore,
sample size,n = 36
mean,u = 16 ounce
standard deviation,s = 0.2 pounds = 3.2 ounce
x = 15 ounce
z = (x-u) / (s/sqrt(n)) = -1.875
In conclusion, the probability that the amount dispensed by box will be increased is:
P(X<15) = P(Z<-1.875)
= 1 - P(Z<1.875)
= 1 - 0.9696
0.0304
The Answer is 0.0304.
answer is 11.78
Step-by-step explanation:
using this
angel/360=arc/circumference
We are given that there are 11 animals with a total of 34 legs.
Let G = number of Goats, and D = number of Ducks
then G + D = 11; solving for G, we get G = 11 - D
then, 4G + 2D = 34
substituting the value for G, we get 4(11 - D) + 2D = 34
expanding, we get 44 - 4D + 2D = 34
solving, we get D = 5. Therefore, G = 6
Proof: (5 x 2) + (6 x 4) = 34
Answer:
A population is defined as the data set which consists of all members of a specified group and the sample contains a part or a subset of a population.
For example : all the students of a school are population. But out of all, how many students play sports is a sample.
Hence, the answer is - A population is the complete group under study. A sample is the sub-collection of members of the population from which data are actually collected.
