﻿ Making Predictions Worksheet | Problems & Solutions

# Making Predictions Worksheet

Making Predictions Worksheet
• Page 1
1.
Linda wants to visit her aunt this evening. She plans to take some fruits for her aunt. She put these fruits (apples, oranges, mangoes) in a bag. Predict which fruit Linda's aunt is more likely to take out.

 a. Apple b. Mango c. Orange

#### Solution:

Number of apples in the bag = 8

Number of mangoes in the bag = 4

Number of oranges in the bag = 5

Linda's aunt would probably take out an apple.
[Number of apples in the bag is more than the number of the other fruits.]

2.
Hanna and her friends are playing a game. The winner is the one who selects a thing which is more in number in the bag. Predict whether Hanna would win the game if she selects Lavender.

 a. Winner b. Looser

#### Solution:

The bag contains 8 yellow roses, 8 Lavender roses, 2 Red roses, 2 Orange roses and 2 Leaves.

Hanna would be the winner if she goes for either Yellow or Lavender roses.

So, Hanna is the Winner as she selected Lavender.

3.
A box contains 4 violet, 1 pink, 3 black, and 14 burgundy marbles and a marble is picked at random. Which one is the most likely to be picked?
 a. violet marble b. pink marble c. black marble d. burgundy marble

#### Solution:

Since the maximum number of marbles are burgundy in color, the probability of picking a burgundy marble is more than the probability of picking any other marble.

So, a burgundy marble is most likely to be picked.

4.
Austin goes for walk once in the morning and once in the evening. Predict the number of times he would go for walk in 10 days.
 a. 30 b. 60 c. 12 d. 20

5.
The production of a cereal for different years is shown in the graph. Predict the amount of cereal produced for the year 2002.

 a. 43 thousand tons b. 42 thousand tons c. 40 thousand tons d. 38 thousand tons

#### Solution:

Prediction means telling what would happen in the near future.
[Definition.]

The graph shows an increasing trend in the production of a cereal by 7 thousand tons every year.

The amount of cereal produced for the year 2001 is 35 thousand tons.

So, it can be predicted that the amount of cereal produced for the year 2002 would be 42 thousand tons.

6.
The variation in the price of Lawson's share is shown in the graph. Predict the price of the share for the month of June.

 a. $1500 b.$500 c. $2000 d.$1000

#### Solution:

Prediction means telling what would happen in the near future.
[Definition.]

The graph shows an increasing trend in Lawson's share by $200 every month. Lawson's share price for the month of May is$1300.

So, it can be predicted that the price of Lawson's share for the month of June would be $1500. Correct answer : (1) 7. The graph shows the number of subscribers for a magazine during the first five weeks of its publication. Predict the number of subscribers for the sixth week.  a. 7,500 b. 10,000 c. 2,000 d. 5,000 #### Solution: Prediction means telling what would happen in the near future. [Definition.] The graph shows an increasing and decreasing trend in the number of subcribers alternatively. The pattern of the graph shows a decrease of 500 subscribers in second week and an increase of 1,000 subscribers in third week, and again a decrease of 500 subscribers in fourth week, and an increase of 1,000 subscribers in the fifth week. So, it can be predicted that the number of subscribers for the sixth week would be 5,000. Correct answer : (4) 8. The profit earned by a company during the last five months is shown in the table. Predict the profit for the month of August.  Month Profit Earned(in ten thousand dollars) March 3 April 7 May 11 June 15 July 19  a.$230,000 b. $200,000 c.$20,000 d. $23,000 #### Solution: Prediction means telling what would happen in the near future. [Definition.] The table shows an increasing trend in the profit earned by a company during the last five months by$40,000 every month.

The profit earned by the company for the month of July is $190,000. So, it can be predicted that the profit earned by the company for the month of August would be$230,000.

9.
The table shows the quantity of wool exported in different years. Predict the quantity of wool export for the year 2003.
Year

#### Solution:

Prediction means telling what would happen in the near future.
[Definition.]

The table shows an increasing trend in the quantity of wool exported in different years by 5 million tons every year.

The quantity of wool exported for the year 2002 is 30 million tons.

So, it can be predicted that the quantity of wool export for the year 2003 would be 35 million tons.

The table shows an increasing trend in the quantity of wool exported in different years by 5 million tons every year.

10.
In a factory 400 discs were checked, out of which 40 were found to be defective. How many defective discs can be found in a sample of 1200 disks?
 a. 90 b. 110 c. 130 d. 120

#### Solution:

Number of disks checked = 400.

Number of disks found defective = 40.

So, the probability of getting a defective disk = 40 / 400
[Number of favourable eventsTotal number of possible outcomes.]

= 1 / 10
[Simplify.]

Number of disks to be checked = 1200.

So, the number of disks which can be found to be defective in a sample of 1200 disks = 1200 × 1 / 10
[Simplify.]

= 120