Answer:
c.right 3 units, down 1 unit
Step-by-step explanation:
Answer:
a) 0.96
b) 0.016
c) 0.018
d) 0.982
e) x = 2
Step-by-step explanation:
We are given with the Probability density function f(x)= 2/x^3 where x > 1.
<em>Firstly we will calculate the general probability that of P(a < X < b) </em>
P(a < X < b) =
=
=
{ Because
}
=
=
=
=
a) Now P(X < 5) = P(1 < X < 5) {because x > 1 }
Comparing with general probability we get,
P(1 < X < 5) =
=
= 0.96 .
b) P(X > 8) = P(8 < X < ∞) = 1/
- 1/∞ = 1/64 - 0 = 0.016
c) P(6 < X < 10) =
=
= 0.018 .
d) P(x < 6 or X > 10) = P(1 < X < 6) + P(10 < X < ∞)
=
+ (1/
- 1/∞) = 1 - 1/36 + 1/100 + 0 = 0.982
e) We have to find x such that P(X < x) = 0.75 ;
⇒ P(1 < X < x) = 0.75
⇒
= 0.75
⇒
= 1 - 0.75 = 0.25
⇒
=
⇒
= 4 ⇒ x =
Therefore, value of x such that P(X < x) = 0.75 is 2.
Answer:
There are approximately 133 new skiers arriving every day
Step-by-step explanation:
Total number of skiers = 1465
time of stay for skiers = 11 days
How many new skiers are arriving on average = ???
To keep the average number of skiers available at each time constant, the number of skiers coming in and going out are fairly constant, and this is gotten by using the flow rate formula.
flow rate = amount available ÷ flow time
flow rate = 1465 ÷ 11
flow rate = 133.18
flow rate = 133
∴ There are approximately 133 new skiers arriving every day
Answer:
m1 = 33 degrees ; m3 = 33 degrees
Step-by-step explanation:
m8 = m4 = 147 degrees
m4 + m1 = 180
147 + m1 = 180
m1 = 180 - 147
m1 = 33 degrees
m1 = m3 (vertical angles)