Brian as 8 cards.
The fraction that show how many are baseball cards is 5/8, because 5 cards from the total amount are baseball cards. Good luck !
Answer:
3 cm
Step-by-step explanation:
Answer:
a. 0.9
b. 0.024
c. 0.06
d. 0.2
e. 0.336
Step-by-step explanation:
Since A, B and C are mutually exclusive then P (A U B U C)=P(A)+P(B)+P(C) and P(A∩B∩C)=P(A)*P(B)*P(C).
a.
P (A U B U C)=P(A)+P(B)+P(C)
P (A U B U C)=0.2+0.3+0.4=0.9
b.
P(A∩B∩C)=P(A)*P(B)*P(C)
P(A∩B∩C)=0.2*0.3*0.4=0.024
c.
P(A∩B)=P(A)*P(B)
P(A∩B)=0.2*0.3=0.06
d.
P[(AUB)∩C]=P(AUB)*P(C)
P(AUB)=P(A)+P(B)=0.2+0.3=0.5
P[(AUB)∩C]=0.5*0.4=0.20
e.
P(A')=1-P(A)=1-0.2=0.8
P(B')=1-P(B)=1-0.3=0.7
P(C')=1-P(C)=1-0.4=0.6
P(A'∩B'∩ C')=P(A')*P(B')*P(C')
P(A'∩B'∩ C')=0.8*0.7*0.6=0.336
Answer:
the minimum value is -2
Step-by-step explanation:
this is because when you graph a positive function (right side up u-shaped) the minimum value is always the vertex. when finding maximum and minimum value you always want to use the "y" part of the coordinate for example (x,y) or plugging in numbers let's say you have (2,3) the y coordinate would be 3. In the picture there is the function you are graphing and the vertex is at (0,-2) the minimum value (the y coordinate) is -2. If you wanted to find the maximum value of this function you would need a specific range like 5<x<4. you would need a range because the parabola actually goes on infinitely because there are no endpoints. a parabola is pretty much a u-shaped line on a graph. If the graph were negative meaning that the equation would look like this, -6x^2-2 then the graph would be an upsidedown u shape and the minimum value we just found would become the maximum value and you would need a special range to find the minimum in that case.
Answer:
Step-by-step explanation:
Since she will use 4 groups or class intervals, the the class width would be 20/4 = 5 hours
The class groups would be
1 to 5
5 to 10
10 to 15
15 to 20
The class mark for each class is the average of the minimum and maximum value of each class. Therefore, the class marks are
(1 + 5)/2 = 3
(5 + 10)/2 = 7.5
(10 + 15)/2 = 12.5
(15 + 20)/2 = 17.5
The frequency table would be
Class group Frequency
1 - 5 4
5 - 10 8
10 - 15 6
15 - 20 2
The total frequency is 4 + 8 + 6 + 2 = 20
