Welcome to your Statistics(Senior Class Maths Study by Topics) NAME EMAIL PHONE NUMBER 1. Class 1-3 4-6 7-9Frequency 5 8 5The standard deviation of the frequency distribution in the table above is52.212.52. The heights of eight children are: 1 m, 1.2 m, 0.9 m, 0.8 m, 1.4 m, 0.8 m, 1.2 m and 1.1 m. The sum of the mean and the range is2.45 m1.11 m1.65 m1.85 m3. The pie chart illustrates the distribution of number of married men (M), married woman (W), bachelors(B), spinsters(S) and children(C) at a social event.The angle of the sector representing spinsters is36°48°24°45°4. The table below shows the frequency distribution of a number of pets in 25 houses Find the median of the distribution54375. The marks scored by students in a test are recorded in the table belowCalculate the mean5.674.344.782.326. The numbers 2, 5, 7, 8, 10, 15 and 13 are represented on a pie chart . The sum of the angles representing all numbers equal to or greater than 8 is48 degrees228 degrees84 degrees276 degrees7. In a class of 20 students the scores in a Mathematics test out of 10 marks are as follows:5, 3, 6, 7, 8, 4, 5, 4, 9, 34, 6, 4, 5, 7, 4, 5, 6, 7, 2The mode of the scores is54678. The following are measures of central tendency exceptmean deviationmodemeanmedian9. The following are measures of dispersion exceptstandard deviationrangemean deviationmode10. The following data gives the heights to the nearest metre of 55 treesUsing a working mean of 18 or otherwise, calculate the standard deviation11.2 m8.3 m7.1 m10.3 m11. The table below shows the heights to the nearest cm of a group of peopleCalculate the range of the distribution49 cm59 cm39 cm29 cm12. In a class of 20 students the scores in a Mathematics test out of 10 marks are as follows:5, 3, 6, 7, 8, 4, 5, 4, 9, 3, 4, 6, 4, 5, 7, 4, 5, 6, 7, 2The range of the distribution is978213. The scores of a group of students are4, 5, 6, 7, 8.The standard deviation is21.71.4314. The distribution of grades in a Mathematics examination taken by a class of 72 students is represented on a pie chart.If 54 students passed the examination , the angle of the sector corresponding to the number of failures is120 degrees45 degrees60 degrees90 degrees15. The scores of a class of students in a test are shown below:Scores 2 3 4 5 6 7No. of students 1 3 5 x 4 2If the average score is 14/3, the value of x is356416. The following marks were obtained by candidates in an examination Calculate the third quartile65.37382.453.817. The table below shows the masses to the nearest kg of a group of market women.The median of the distribution is145/2 kg72 kg73 kg147/2 kg18. The scores of students in a class test are given in the table below:Marks 1 2 3 4 5 6 7 8 9 10Frequency 0 3 1 2 3 4 2 1 1 0The number of students who scored at least 5 is10931119. In an experiment, the mean of 25 observations was 6. One of the observations, which has the value of 30, was cancelled. The mean of the remaining observations is4.554.83.520. The table below shows the frequency distribution of marks scored by students in a class test:Score 1 2 3 4 5Frequency x+2 x-1 2x-3 x+4 3x-4 If the average score is 43/14, how many students scored 3 points?351721. The diagram illustrates the distribution of marks in a class testThe total number of students who sat for the test is3548364022. The table below shows the marks obtained by 8 students taking English and PhysicsThe standard deviation for Physics is2119.8241223. No. of goals 0 1 2 3 4 5Frequency 5 6 12 10 2 1The total number of goals scored by all the teams is7870737224. The following marks were obtained by candidates in an examination What is the modal group41-5051-6071-8061-7025. The scores of students in a class test are given in the table below:Marks 1 2 3 4 5 6 7 8 9 10Frequency 0 3 1 2 3 4 2 1 1 0The number of students who took the test is1525172026 out of 25Time is Up!