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If B is the mid point of [latex]overline{AC}[/latex] and C is the mid point of [latex]overline{BD}[/latex] where A, B, C, D lie on a straight line, say why AB = CD?

Given that B is the midpoint of AC. Hence, AB = BC-------------- (1) C is the midpoint of BD. Hence, BC = CD------------ (2) From above... View Article

If A, B, C are three points on a line such that AB = 5 cm, BC = 3 cm and AC = 8 cm, which one of them lies between the other two?

Solution Given AB = 5 cm BC = 3 cm AC = 8 cm From the given data AC = AB + BC 8=5 + 3 Hence, point B lies between A and C.... View Article

Draw any line segment, say [latex]overline{AB}[/latex].Take any point C lying in between A and B. Measure the lengths of AB, BC and AC. Is AB = AC + CB?

Solution We are given that point C lie in between A and B. Hence, all points are lying on the same line segment . Therefore for every... View Article

Why is it better to use a divider than a ruler, while measuring the length of a line segment?

It is better to use a divider than a ruler while measuring the length of a line segment because while using a ruler, occurrences of error due to... View Article

The sixth class interval for a grouped data whose first two class intervals are 10 – 15 and 15 – 20 is ______

The sixth class interval for a grouped data whose first two class intervals are 10 – 15 and 15 – 20 is 35 – 40. Explanation... View Article

The difference between the upper and lower limit of a class interval is called the ______ of the class interval.

The difference between the upper and lower limit of a class interval is called the Size/width of the class interval. Explanation The difference... View Article

An experiment whose outcomes cannot be predicted exactly in advance is called a ______

An experiment whose outcomes cannot be predicted exactly in advance is called a random experiment. Explanation An activity that produces a result... View Article

Each outcome or a collection of outcomes in an experiment makes an _____

Each outcome or a collection of outcomes in an experiment makes an Event. Explanation In probability, events are the outcomes of an experiment.... View Article

When a dice is rolled, the six possible outcomes are ______

When a dice is rolled, the six possible outcomes are 1, 2, 3, 4, 5 and 6. Explanation When a fair dice is rolled, the number that comes up top... View Article

A pie chart is used to compare ____ to a whole.

A pie chart is used to compare parts to a whole. Explanation A pie chart is a type of graph that represents the data in the circular graph. A pie... View Article

The range of the data 6, 8, 16, 22, 8, 20, 7, 25 is _____

The range of the data 6, 8, 16, 22, 8, 20, 7, 25 is 19. Explanation The range in statistics for a given data set is the difference between the... View Article

In the class interval 26 – 33, 33 is known as ____

In the class interval 26 – 33, 33 is known as an upper-class limit. Explanation The two limits the upper one and lower one determine... View Article

In the class interval 20 – 30, the lower class limit is ____

In the class interval 20 – 30, the lower class limit is 20. Explanation The two limits the upper one and lower one determine the class... View Article

Data available in an unorganised form is called ____ data.

Data available in an unorganised form is called raw data. Explanation The term raw data comes in the concept of data handling. Data handling... View Article

A dice is tossed two times. The number of possible outcomes is (a) 12 (b) 24 (c) 36 (d) 30

The correct answer is (c) 36 Explanation Probability is a measure of the likelihood of an event to occur. The formula of probability is... View Article

A coin is tossed three times. The number of possible outcomes is (a) 3 (b) 4 (c) 6 (d) 8

The correct answer is (d) 8 Explanation Probability= Head Head Head, Tail Tail Tail, Tail Head Head, Head Tail Head, Head Head Tail, Head... View Article

A coin is tossed two times. The number of possible outcomes is (a) 1 (b) 2 (c) 3 (d) 4

The correct answer is (d) 4 Explanation Probability= Head Head, Tail Tail, Tail Head, Head Tail. Probability is a measure of the... View Article

A glass jar contains 6 red, 5 green, 4 blue and 5 yellow marbles of same size. Hari takes out a marble from the jar at random. What is the probability that the chosen marble is of red colour? (a) 7/10 (b) 3/10 (c) 4/5 (d) 2/5

The correct answer is (b) 3/10 Explanation Probability is a measure of the likelihood of an event to occur. The formula of probability is... View Article

Numbers 1 to 5 are written on separate slips, i.e. one number on one slip and put in a box. Wahida pick a slip from the box without looking at it. What is the probability that the slip bears an odd number? (a) 1/5 (b) 2/5 (c) 3/5 (d) 4/5

The correct answer is (c) 3/5 Explanation Probability is a measure of the likelihood of an event to occur. The formula of probability is... View Article

Upper limit of class interval 75 –85 is (a) 10 (b) –10 (c) 75 (d) 85

The correct answer is (d) 85 Explanation The two limits the upper one and lower one determine the class size. The higher value is the upper... View Article