It would be D, using process of elimination ;))
The second, third and fourth
Answer:
the domain is -5 to infinity
Explanation:
f
(
x
)
=
√
x
+
5
A square root is
≥
0
so
x
+
5
≥
0
Here is a graph of the function
x
≥
−
5
g
r
a
p
h
{
√
x
+
5
[
−
10
,
10
,
−
5
,
5
]
}
Answer:
5 ; 0.728 ; 0.00002
Step-by-step explanation:
According to the Central limit theorem, for a normal distribution, the population mean equals the sample mean., Hence the population mean, μ = sample mean = 5
The standard deviation of sampling distribution :
Standard deviation / sqrt(n)
σ / sqrt(n)
σ = 3 ; n = 17
3 / sqrt(17)
3 / 4.1231056
= 0.7276
= 0.728
3.)
P(x < 2) :
Using :
Z = (x - mean) ÷ s/sqrt(n)
P(x < 2) = (2 - 5) ÷ 3/sqrt(17)
P(x < 2) = -3 / 0.7276068
P(x < 2) = - 4.1231060
Z < - 4.123 = 0.00002 (Z probability calculator).
Answer:
72- no
36-yes
8- no
16- yes
81-yes
64-yes
48-no
Step-by-step explanation: