In a class test marks obtained by 120
WebApr 7, 2024 · So, we can say that $40\% $ of the students has failed the test. So, in the ascending order, we can say that the mark after the $40\% $ of the entry is the minimum marks obtained by the pass student. Now we can find the class at which the required term lies. $ \Rightarrow N = 40\% \times n$ It is given that the marks are of 50 students. WebDec 27, 2024 · In a class test, marks obtained by 120 students are given in the following frequency distribution. If it is given that mean is 59, find the missing frequencies x and y …
In a class test marks obtained by 120
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Web In a class test, marks obtained by 120 students are given in the following frequency distribution. If it is given that mean is 59, find the missing frequencies x and y. Marks No. of students 0−10 1 10−20 3 20−30 7 30−40 10 40−50 15 50−60 x 60−70 9 70−80 27 80−90 18 90− 100 y Please scroll down to see the correct answer and solution guide. WebFeb 4, 2024 · The marks obtained by 120 students in a test are given below : Draw an ogive for the given distribution an a graph sheet. Use suitable scale for ogive to estimate the …
WebQuestion: Marks obtained by male students in a class is normally distributed with mean of 65 and standard deviation of 5, while marks obtained by female students is normally distributed with mean of 68 and standard deviation of 14. Which of the following statements is TRUE? a. The peak of the normal curve for female is higher than male. b. The spread of … WebJun 1, 2024 · In a class test, marks obtained by 120 students are given in the following frequency distribution. If it is given that mean is 59, then find the missing frequencies x and y. CBSE 2015 Marks...
WebTotal marks obtained by 8 students in class test = (12 + 14 + 16 + 18 + 20 + 10 + 11 + 19) = 120 Using the mean formula, Mean = (Sum of Observation) ÷ (Total numbers of Observations) = 120/8 = 15 Therefore, the mean of marks obtained by 8 students is 15. WebStatistics and Probability questions and answers. 01 The marks obtained out of 25 by 20 students of a class in the examination are given below. 19, 9, 14, 15, 22, 10, 20, 23, 17, 10, 11, 6, 20, 9, 7, 11, 6, 11, 7, 24 (a) Represent the above data as a grouped data taking the class interval 15 < x < 20 (b) Draw a histogram for the above data.
WebSolution: Class- mark = (Upper class limit-lower class limit)/2 = (150 + 140)/2 = 290/2 = 145 Thus we can create a new table with class-mark. Now with these class marks we can plot the frequency polygon as shown below. Measure of central tendency (Mean, Mode and Median) Mean: The average of number of observations given.
WebMath Statistics The following table shows the marks obtained by 120 students of class IX in a cycle test-1. Draw the more than Ogive curve for the following data : Marks 0-10 10-20 20-30 30-40 40-50 50-60 60-70 70-80 80-90 90-100 No. of 2 6. 8 20 30 22 18 4 2 students Also, find (i) The Median (ii) The Number of students who get more than 75 marks. ct299WebThe marks obtained by 120 students in a mathematics test is given below: Dr Draw an ogive for the given distributions on a graph sheet. use a suitable scale for your ogive. use your … ear on your investmentear-o-smartWebApr 3, 2024 · In a class test, marks obtained by 120 students are given in the following frequency distribution. If it is given that mean is 59, find the missing frequencies x and y. … earoplane for sale in saWebApr 11, 2024 · 3.3. Cytotoxic Activity of B. micrantha 3.3.1. Cytotoxicity on RAW 264.7 Cells. Table 2 presents the results of the cytotoxicity test on RAW 264.7 macrophage cells. It emerges from this table that the aqueous and ethanol extracts had no significant activity on the RAW 264.7 macrophage cells with of μg/ml and μg/ml for aqueous and ethanol … earosol isolatieWebApr 7, 2024 · The total number of marks obtained by $120$ students= total number of candidates × average marks of those students=$120 \times 35 = 4200$ ... If A1A2 are the … earotary.orgWebThe results of the survey are shown below. Ludmila decides to use the test at the level of significance to determine whether the choice of language is independent of gender. State Ludmila’s null hypothesis. Markscheme Choice of language is independent of gender. (A1) Notes: Do not accept “not related” or “not correlated”. [1 mark] χ2 ... ear origin