WebApr 14, 2024 · The mean height of all 32 students is 1.515. According to the question, the total number of students is 32. Mean of the data is formulated as Now, total height of all students can be calculated as And, total height of 14 boys can be calculated as Here, number of girls is 32-14=18. Then, total height of girls =48.48-21.84=26.64 WebMar 23, 2024 · Transcript. Ex 3.1, 1 Find the range of heights of any ten students of your class. Let heights of 10 students be 120 cm, 125 cm, 150 cm, 110 cm, 148 cm, 143 cm, 105 cm, 149 cm, 130 cm, 115 cm Range = Maximum height − Minimum height = 150 − 105 = 45 cm. Next: Ex 3.1, 2 Important → Ask a doubt. Chapter 3 Class 7 Data Handling.
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WebAug 2, 2024 · The height of a class of students in a school is said to follow Normal Distribution. We know that the domain of a random variable that follows Normal distribution is said to range from minus infinity to plus infinity. But height can never attain a negative value. So how can we say that height follows a Normal Distribution? distributions WebJun 14, 2024 · The height of the students in a certain class is following normal distribution with mean height as 165 cm and standard deviation of 25 cm. There are 60 students in … jens wittendorff transfer pricing
In a class of 32 students the mean height of 14 boys is 1.56 - Brainly.com
WebFeb 4, 2024 · the mean height of all 32 students is 1.515 meters. Total number of students = 32 Mean height of all students = 1.515 We can obtain the sum of all student's height : Number if students * mean height = 32 * 1.515 = 48.48 Number of boys = 14 Mean height of boys = 1.56m We can obtain the sum of all boys height : Number if students * mean height WebPose the question, “The average height of a student is 135cm. Which year level would you visit to find a student of average height? Write down and justify your theory.” Each member of the class finds the average height of their family. Students discuss factors that influence the average, i.e. new-born baby, teenage children, etc. WebDec 20, 2024 · The mean height for girls. Solution: To find the mean height of girls we will follow the following steps: As we know, Mean is the sum of all the numbers divided by the total numbers. According to the question: Total students = 25 Total boys xb = 10 Total girls xg = 15 The mean of class height is x meters. So, Also, jensam creations