Answer:
(1)
(2)
(3)
(4)
Step-by-step explanation:
(1). A bag has 5 red marbles, 6 blue marbles and 4 black marbles.
Total marbles in a bag = 5 + 6 + 4 = 15 marbles
The probability of picking a red marble =
=
By replacing it and then picking another red marble =
=
P = ×
=
(2). A bag has 5 red marbles, 6 blue marbles and 4 black marbles.
Total marbles in a bag = 5 + 6 + 4 = 15 marbles.
The probability of picking a blue marble = =
=
replacing it and then picking a black marble = =
P = ×
=
(3). A bag contains 4 white, 3 black and 5 red marbles.
Total marbles = 4 + 3 + 5 = 12 marbles
The probability of picking a red marble =
(4). A bag contains 3 white marbles, 2 black marbles and 5 red marbles.
Total marbles = 3 + 2 + 5 = 10 marbles.
The probability of picking a white marble =
(1)
(2)
(3)
(4)
Answer:
A. Probability = 0.02
B. This is in a cumulative frequency table in the attachment I added
Step-by-step explanation:
A. We have these following probabilities
Prob(X=0) = 0.05
Prob(x= 2) = 0.30
Prob(X = 4) = 0.50
Prob(X < 2) = Prob(X=0) + prob(X=1)
0.18 = 0.05 + prob(X=1)
prob(X=1) = 0.13
A. Prob(x = 3)
= 1 - (0.05 + 0.13 + 0.30 + 0.50)
= 0.02
Probability of buying only 3 times = 2%
B. The cumulative frequency is in the attachment.
Answer:
○ C
Explanation:
Accourding to one of the circle equations, the centre of the circle is represented by
Moreover, all negative symbols give you the OPPOCITE TERMS OF WHAT THEY <em>REALLY</em> ARE, so you must pay cloce attention to which term gets which symbol. Another thing you need to know is that the radius will ALWAYS be squared, so no matter how your equation comes about, make sure that the radius is squared. Now, in case you did not know how to define the radius, you can choose between either method:
Pythagorean Theorem
Sinse we are dealing with <em>length</em>, we only desire the NON-NEGATIVE root.
Distanse Equation
Sinse we are dealing with <em>distanse</em>, we only desire the NON-NEGATIVE root.
I am joyous to assist you at any time.