Question

the graph of a distribution of data shows that the graph is ww. A) Median is a better measure of central tendency B) Midrange is a better measure of central tendency C) Mean is a better measure of central tendency D) Mode is a better measure of central tendency then the 31) The number of student member of students enroll the median number of students 65 66 67 66 67 70 67 70 71 68 A) 67 students B) 70 students the last tensmesters are listed below. Find e d belon 31) C) 66 students D) 68 students 32) of len consecutive days are listed below. Find 32) The commuting times in minutes) of an employee for ben consecutive days are les the median commute 71 67 67 72 76 72 73 68 72 72 A) 73 minutes B) 71 minutes C) 72 minutes D) 67 minutes The commuting times of ten employees in minutes) are listed below. Find the mode score 65 66 67 66 67 70 67 70 71 68 A) 66 minutes B) 68 minutes C) 65 minutes D) 67 minutes 34) A numerical summary of a population is a A) Statistic C) Variable B) Qualitative response D) Parameter Find the population mean or sample mean as indicated. 35) Population: 6, 9,2, 12, 13, 24 A) x = 12 B) = 14 X = 13 D) = 11 Compute the range for the set of data. 36) 74, 142, 35, 103, 199 A) 199 B) 164 C)35 D) 110.6 Find the sample standard deviation. 37) 42, 87, 69, 60, 64, 22, 67, 74, 49 A) 328.4 B) 295.6 C) 19.2 D) 17.2 Provide an appropriate response. 38) Which is not a measure of dispersion? A) Range C) Mean B) Variance D) Standard deviation 39) A statistic is said to be biased if it A) Has exactly the same value as the parameter B) Systematically underestimates or overestimates a parameter C) is determined from a trimmed sample D) Leads to an erroneous conclusion about the sample

Answer 1

PAGE: DATE: - 30(c) Jor a symmetric graph, mean is better measure of central tendency because it ihrelunter includes all the data om 31 (A) medians del muddle more number 65 66 67 66 67 70 67 70 768 dirst we arrange the clate bet in Jotal no us tion increasing onder a 65 66 66 67/67 67 68 70 70 71 Yeni The two middle number is 67967 .: mediom 2 677 67 67 calculator 2 - 67 wakeny punay) 32 l) 71 6.7 67 22 76 7273 68 72 72 Do nange - 67 67 68.7122 72 72 72 73 7 Iwo mildil number is 72 72+72 72 - 330) moda is the highest of all data taset mode is the number whose frequency is highest Arrangeing the gioon data 65 66 66 67 67 67 68 70 70 71 Frequency of 67 is 3 runt mode - 67 340 parameter 4/4

A 6 g, 22 12 113 , 24andi * A Stumo ta+cel obrovich'on 6+9+ 3+ 12 +13+24 ઇન શ no silin 11 given data is of population - M 11 - The 3615) Range mat valus-min vaskus 199 - 35 164 = 39h 42, 87, 69, 60, 64, 22,67174, 49 calcular 3x we get 59.33 Ini" 34640 imagesha _34640 - 59.33 – 19.22 38,1 mean 3916) Systematically underestimate on our shmake a parameter 5/5