Basic pre-algebra help – Example: 1
Simplify 16 + 9.
Solution:
=16 + 9
= 25
Answer : 16 + 9 = 25
More help:
Tuesday, August 31, 2010
Mean and standard deviation
- Mean and standard deviation
Solve the mean for the weight of 8 peoples in kilograms is 25, 8, 65, 82, 78, 33, 51, and 80.
Solution:
The sum of given number
Mean = ---------------------------------------------
The total number given
25 + 8 + 65 + 82 + 78 + 33 + 51 + 80
= ------------------------------------------------------------ 8422
= ----------8
= 52.75
This is the solution for the mean in the given values.More on:
Mid point
Mean deviation calculator
Monday, August 30, 2010
Probability
Conditional probability:
0 < P(A) < 1
They assign a probability of zero to the experiments that cannot occur, & a probability of one to the events that are positive.
The complement of an event
The complement of an experiments A, denoted by
is the set of all the outcomes that are not in A.
S = {1, 2, 3, 4, 5, 6} A = {1, 2}
A= {3, 4, 5,6}
From before, they can see that
P(A) = 1 – P(A) law of complement
more help on;
Fractions of 24
Mean deviation
0 < P(A) < 1
They assign a probability of zero to the experiments that cannot occur, & a probability of one to the events that are positive.
The complement of an event
The complement of an experiments A, denoted by
is the set of all the outcomes that are not in A.
S = {1, 2, 3, 4, 5, 6} A = {1, 2}
A= {3, 4, 5,6}
From before, they can see that
P(A) = 1 – P(A) law of complement
more help on;
Fractions of 24
Mean deviation
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