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Data handling ppt for class 7th
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Data Handling.

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The ppt makes a student understand the main terms of data handling.

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Data Handling.

  1. 1. Design
  2. 2. • The "mode" is the value that occurs most often. If no number is repeated, then there is no mode for the list • For example if we have to find the mode of the following series- • 13, 18, 13, 14, 13, 16, 14, 21, 13 • . The mode is the number that is repeated more often than any other, so 13 is the mode.
  3. 3. • Median is the middle value of the given numbers or distribution in their ascending order. Median is the average value of the two middle elements when the size of the distribution is even.
  4. 4. Example 1: To find the median of 4,5,7,2,1Example 1: To find the median of 4,5,7,2,1 [ODD].[ODD]. Step 1:Step 1: Count the total numbers given.Count the total numbers given. There are 5 elements or numbers inThere are 5 elements or numbers in the distributionthe distribution Step 2:Step 2: Arrange the numbers in ascendingArrange the numbers in ascending order.order. 1,2,4,5,71,2,4,5,7 Step 3:Step 3: The total elements in theThe total elements in the distribution (5) is odd.distribution (5) is odd. The middle position can beThe middle position can be calculated using the formula. (n+1)/2calculated using the formula. (n+1)/2 So the middle position is (5+1)/2 =So the middle position is (5+1)/2 = 6/2 = 36/2 = 3 The number at 3rd position is =The number at 3rd position is = Median = 4Median = 4
  5. 5. 0 2 4 6 8 10 JISBIN DEV SUCHIT MOHIT MARKS MARKS
  6. 6. • Probability is the chance that something will happen - how likely it is that some event will happen. Sometimes you can measure a probability with a number: "10% chance of rain", or you can use words such as impossible, unlikely, possible, even chance, likely and certain. Example: "It is unlikely to rain tomorrow".
  7. 7. • Problem:  A spinner has 4 equal sectors colored  yellow, blue, green and red. What are the  chances of landing on blue after spinning the  spinner? What are the chances of landing on red. •  Solution:  The chances of landing on blue are 1  in 4, or one fourth. The chances of landing on red  are 1 in 4, or one fourth • This problem asked us to find some probabilities  involving a spinner.
  8. 8. • In probability, we talk about events" and outcomes." An  event is anything that happens. An outcome for example,  can have two possible results -- heads or tails. When you  flip a coin (an event), the result (outcome) is either heads  or tails. • Probability tells you which outcome -- heads or tails -- is  more likely to occur in any given event. You can determine  the probability of a particular outcome by dividing the  number of times that the outcome has occurred by the  total number of events. To find the probability that a flipped  coin will come up heads, for example, you might flip the  coin 25 times. If the coin turns up heads 10 times, then the  probability that the coin will land heads up on the next flip  is 10/25, or 2/5.
  • shivamgahlot2

    May. 27, 2021
  • sowmyachada

    May. 26, 2021
  • NandiTabane

    Mar. 2, 2020
  • Gajera123

    Mar. 21, 2015
  • yatintaneja7

    Jan. 9, 2015

The ppt makes a student understand the main terms of data handling.

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