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Example:
4
6
+
5
6
3
6
1
9
9
6
Example: 1, __ , 3, 4, 5; mean=3
Step 1: Let N be the missing number.
Step 2: We know, Mean = (Sum of all numbers)/(Number of numbers);
Therefore, Sum of all numbers = Mean x Number of numbers
→ 1 + N + 3 + 4 + 5 = 3 x 5 → N + 13 = 15 → N = 15-13 → N = 2
Step 1: Let N be the missing number.
Step 2: We know, Mean = (Sum of all numbers)/(Number of numbers);
Therefore, Sum of all numbers = Mean x Number of numbers
→ 1 + N + 3 + 4 + 5 = 3 x 5 → N + 13 = 15 → N = 15-13 → N = 2
Example: I am made of a vertical and a horizontal line. Who am I?
right angle
Example: I three sides and three edges. Who am I?
triangle
Example: What is twice the radius?
chord
diameter
circumference
Example:
1.8
1.5
1.3
1.6
1.9
1.3
1.5
1.6
1.8
1.9
Example:
1.8
1.5
1.3
1.6
1.9
1.9
1.8
1.6
1.5
1.3
Example: a substance added to a liquid to lower its freezing point
Choice:
freeze
antifreeze
unfreeze
Example:
2
6
+
1
2
1
6
2
3
5
6
Example: Convert to a mixed number
4
3
3) = 1
4
= 1 with remainder of 1. The answer is the whole number part, the remainder is the numerator part, and the denominator is the same as the improper fraction.
Therefore, 4
3
1
3
Example: Find the median of the following: 1, 2, 1, 5, 5
Step 1: Sort the list → 1, 1, 2, 5, 5
Step 2: Count of numbers listed → 5 (odd)
Step 3: So the middle number is (count+1)/2 → (5+1)/2 → 3rd number. Therefore, the median is 2.
Step 1: Sort the list → 1, 1, 2, 5, 5
Step 2: Count of numbers listed → 5 (odd)
Step 3: So the middle number is (count+1)/2 → (5+1)/2 → 3rd number. Therefore, the median is 2.
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