Answer:
It means 2/1
Step-by-step explanation:
For example if YIU say the ratio girls to boys is 2 to 1 then you are there are 2 girls to 1 boy
Answer:
28x-35
Step-by-step explanation:
4x*7=28x
5*7=35
Answer:
Option B is tge right answer.
3.07/10⁴= 0.000307
x-intercept(s):
(
7
,
0
)
, (-1,0)
y-intercept(s):
(0,-7)
Step-by-step explanation:
Answer:
Test statistic = - 0.851063
- 2.520463
Step-by-step explanation:
H0 : μ ≥ 15
H1 : μ < 15
Sample mean, xbar = 14.5
Sample standard deviation, s = 4.7
Sample size = 64
Teat statistic :
(xbar - μ) ÷ (s/√(n))
(14.5 - 15) ÷ (4.7/√(64))
= - 0.851063
The critical value at α = 0.05
Using the T - distribution :
Degree of freedom, df = 64 - 1 = 63
Tcritical(0.05, 63) = 1.6694
Test statistic - critical value
-0.851063 - 1.6694
= - 2.520463
