Answer:
The statement is true about whether A and B are independent eventa is fourth option:
A and B are not independent events because P(A/B)=0.375 and P(A)=0.25
Step-by-step explanation:
Let A be the event that the person rides the bus to school, then:
P(A)=75/300
P(A)=0.25
Let B be the event that the person has 3 or more siblings, then:
P(B)=24/300
P(B)=0.25
P(A/B)=9/24
P(A/B)=0.375
Like P(A/B)=0.375 is different to P(A)=0.25 the events are not independent
Answer. Fourth option:
A and B are not independent events because P(A/B)=0.375 and P(A)=0.25
Answer:
c. How much money would be in the account after 18 years?
Answer:
The absolute error = 2 centimeters.
The desirable length = 45 cm
The minimum length = 43 cm.
The maximum length = 47 cm.
Step-by-step explanation:
Katie has been given a project to make a model car that is 45 centimeters long. The teacher has told her that variations in the length of up to 2 centimeters are acceptable.
Therefore, the absolute error = 2 centimeters.
The desirable length = 45 cm
The minimum length = (45 - 2) = 43 cm.
The maximum length = (45 + 2) = 47 cm. (Answer)
Answer:
x^2 + 14x + 49
Step-by-step explanation:
Use the distributive property:
(x + 7)(x + 7) = x^2 + 7x + 7x + 49 = x^2 + 14x + 49
F(x) = 3x² - 3x - 6
The zeros f(x) = 0 ⇒ 3x² - 3x - 6 = 0
3x² - 6x + 3x - 6 = 0
3x(x - 2) + 3(x - 2) = 0
(x - 2)(3x + 3) = 0 ⇔ x - 2 = 0 ∨ 3x + 3 = 0
x = 2 ∨ 3x = -3
x = 2 ∨ x = -1
