X Statics mean median mode and Ogive MCQ

X Statics mean median mode and Ogive
MULTIPLE CHOICE QUESTIONS
1. If 35 is the upper limit of the class-interval of class-size 10, then the lower limit of the class-interval is :
(a) 20                                                               (b) 25
(c) 30                                                               (d) none of these
2. In the assumed mean method, if A is the assumed mean, than deviation di is :
(a) xi + A                                                        (b) xi – A
 (c) A – xi                                                        (d) none of these]
3. Mode is:
(a) Middle most value (b) least frequent value (c) most frequent value (d) none of these
4. While computing mean of grouped data, we assume that the frequencies are :
(a) evenly distributed over all the classes       (b) centred at the class-marks of the classes
(c) centred at the upper limits of the classes   (d) centred at the lower limits of the classes
5. The curve drawn by taking upper limits along x-axis and cumulative frequency along y-axis is :
(a) frequency polygon                                      (b) more than ogive
(c) less than ogive                                           (d) none of these
6. For ‘more than ogive’ the x-axis represents :
(a) upper limits of class-intervals                    (b) mid-values of class-intervals
(c) lower limits of class-intervals                    (d) frequency
7. Ogive is the graph of :
(a) lower limits and frequency                        (b) upper limits and frequency
(c)lower/upper limits and cumulative frequency (d) none of these
8. The curve ‘less than ogive’ is always :
(a)ascending                                                    (b) descending
(c) sometimes ascending and sometimes descending (d) none of these
9. If mode = 80 and mean = 110, then the median is
(a)110                                                              (b)120
(c)100                                                              (d)90
10. The mean of the following data is : 45, 35, 20, 30, 15, 25, 40 :
(a) 15                                                               (b) 25
(c) 35                                                               (d) 30
11 . The mean and median of a data are 14 and 15 respectively. The value of mode is (a) 16                                                                           (b) 17
(c) 13                                                               (d) 18
12 . For a given data with 50 observations the ‘less than ogive’ and the ‘more then ogive’ intersect at (15.5, 20). The median of the data is :
(a) 4.5                                                              (b) 20
(c) 50                                                               (d) 15.5
13. Which of the following is not a measure of central tendency ?
(a) Mean                                                          (b) Median
(c) Range                                                         (d) Mode
14. The abscissa of the point of intersection of the less than type and of the more than type cumulative frequency curves of a grouped data gives its :
(a)mean                                                           (b) median
 (c) mode                                                         (d) all the three above
15. The measures of central tendency which can’t be found graphically is
(a) mean                                                          (b) median
(c) mode                                                          (d) none of these

Comments

Post a Comment

Popular Post

Obtaining and Utilization Food Class 7 Science Solved question (Basic Science Questions answers)

Image
A. Answer these questions 1. Name the three life process help living being to procure energy from food? Answer: Three life processes that help living organisms to procure energy from food are: (i) Digestion (Nutrition) (ii) Respiration (iii) Transportation 2. What are Autotrophs? Name an organism other than other than green plant that is an autotroph. Answer: Autotrophs are organisms that can prepare their own food. Chlamydomonas is a type of green algae which is an example of an autotroph, other than green plants. Cyanobacteria are also an example of autotroph. 3. Name three type of heterotrophic nutrition Answer: Three types of heterotrophic nutrition are: (i) Saprophytic nutrition (ii) Parasitic nutrition (iii) Holozoic nutrition 4. What are enzymes? Answer: Enzymes are chemical substances that act as biological catalysts and are important for carrying out biochemical processes, such as digestion, in our body ...
Read more

9th Atoms and Molecules Question bank By KV For CBSE Board

CHAPTER - 3 “Atoms and Molecules” 1. Laws of Chemical Combination 2. John Dalton's Atomic Theory 3. Atoms, ions & Chemical Formula 4. Mole Concept 5. Molar Mass & Avogadro constant Download Test Paper with solution CBSE Study By Jsunil ********************************************************************************* 1 Mark Questions: 1. Who gave law of conservation of mass ? 2. What term is used to represent the mass of 1 mole molecules of a substance? 3. What name is given to the number 6.023 x 10 23 ? 4. What is molecular mass? 5. Give Latin names for sodium & mercury. 6. *How many atoms are there in exactly 12 g of carbon ? 7. Define mole. 8. Calculate formula unit mass of CaCl2. [ At. Mass : Ca = 40 u , Cl = 35.5 u ] 9. Name a diatomic gas. 10. How many atoms are present in H 2 SO 4 . ...
Read more

X CHEMISTRY : CHEMICAL REACTIONS AND EQUATIONS:ASSIGNMENT : FIRST TERM (2012-2013)

ASSIGNMENT : FIRST TERM (2012-2013)                  X SUBJECT   : CHEMISTRY CHAPTER        : CHEMICAL REACTIONS AND EQUATIONS           Max Marks: 55 A. Very short answer questions: (1 mark each) (1x 14= 14 marks) 1. What are reactants ? 2. What are products ? 3. What is the term used for symbolic representation of a chemical reaction ? 4. What does the + sign between the reactants indicate ? 5. How is the salt solution in water indicated in a chemical reaction / 6. Aluminium burns in chlorine to form aluminum chloride. Write a balanced equation for this reaction ? 7. Balance the following equation and add the state symbols : Zn(s) + 2HCl(aq) → ZnCl 2 + H 2 8. Name the following reaction. AB + CD → AD + BC 9. Aluminium metal displaces iron fro...
Read more

ASSIGNMENT : FIRST TERM (2012-2013)SUBJECT: CHEMISTRY:CHAPTER: METALS AND NON- METALS

ASSIGNMENT : FIRST TERM (2012-2013)                X - CHEMISTRY                          CHAPTER: ACIDS AND BASES                                     Max Marks: 25 A. Very short answer questions: (1 mark each) (1x 6= 6marks) 1. A calcium compound which is yellowish white powder is used as a disinfectant and also in textile industry. Name the compound. Which gas is released when this compound is left exposed to air ? 2. Which element is common to all acids ? 3. What is common name of water soluble bases ? 4. Write the neutralization reaction between ac...
Read more

CBSE: 9th Subject: Biology assignment Chapter: Tissues

Image
Biology assignment Chapter: Tissues  Q1 Plant and animal tissues are different . Comments. Q2 What is the meristamatic tissue ? what are its characteristics ? Q3 Describe the occurrence of apical. Lateral and intercalary meristems . Q4 Define permanent tissue . What are different categories of permanent tissue . Q5 Give distribution ,types and function of parenchymatous tissues. Q6 How is collenchymas different from sclerchma ? Q7 Describe complex permanent tissue ? Q8 What are the different compounds of xylem and phloem ? Q9 Give on outline classification of animals tissue. Q10 Give characteristics and types of the epithelial tissue . Q11 Diagrammatically show the difference in the three types of muscle fibres . Q12 Where are fats stored in our body . Define their structure . Q13 What are the type...
Read more