Answer:
X = $75
Step-by-step explanation:
X=total cost
x* (1/3) =$25
multiply by 3 on both sides
x=$75
Answer:
Slope is 3/-7
Step-by-step explanation:
Answer:
Parameter = 0.5
Null hypothesis : H0 : P0 = 0.5
Alternative hypothesis ; H0 : P0 > 0.5
Pvalue = 0.99966
Step-by-step explanation:
The parameter defines a statistical value or calculation which is derived from the population.
The parameter in this scenario is the population proportion, P0 which is 0.5
The scenario above describes a scenario to test the difference in population.
The null hypothesis, that bride and groom are of the same age ;
H0 : P0 = 0.5
The alternative hypothesis ; the bride is younger Than the groom in more than half of the population.
H1 : p0 > 0.5
To obtain the Pvalue :
Test statistic : (phat - P0) ÷ √(p0(1 -p0) / n)
Phat = x/n
x = 67 ; sample size, n = 100
Phat = x / n = 67/100 = 0.67
P0 = 1 - 0.5 = 0.5
Tstatistic = (0.67-0.50) ÷ √(0.5(0.5) / 100)
Tstatiatic = 0.17 ÷ 0.05
Tstatistic = 3.4
P-value : p(Z < 3.4) = 0.99966 (Z probability calculator).
Answer:
72 km
Step-by-step explanation:
We can use basic logic to find how many miles you run in 12 weeks.
If you run for 2 km 3 times a week, then you run 6 km per week because 
.
If you continue this for 12 weeks, that means you will have ran 
km, which can simplify down to 72 km.
Hope this helped!
This is a guess but I think 24 hope I helped :))
