Can you think of at least one problem that educational psychologists can find solutions to, concerning the following areas?
1. Behaviour of the student
2. Teaching methods
3. Teacher’s behaviour in the class
1 Answers
Talk Doctor Online in Bissoy App
The width of the class in the distribution having class intervals 1 – 20, 21 – 40,41 – 60 is A) 19 B) 19.5
Correct option is: C) 20 Since, class intervals 1-20, 21-40, 41-60 are of inclusive type, So, we have to convert it into exclusive type of class intervals. \(\because\) Difference between two consecutive intervals is 1. \(\therefore\) We...
2 Answers 3 views
The width of the class in the distribution having class intervals 1 – 20, 21 – 40,41 – 60 is A) 19 B) 19.5
2 Answers
1 views
Median = l + [(n/2 - cf)/f] h, where cf = ……… A) Cumulative frequency of the class preceding the median class.
Correct option is : A) Cumulative frequency of the class preceding the median class. In formula of median for grouped data Median = \(l\) + \(\left[\frac{(\frac{n}{2}-cf)}{f}\right]\) h We have cf = Cumulative frequency of the class preceding...
2 Answers 1 views
Which of the following measures do you use to find average of marks obtained by a student in the class
Correct option is: A) Mean To find the average of marks obtained by a student in the class, we have to find mean.
2 Answers 1 views
(i) Punctuality in class is the duty of a student.
(i) Role (ii) Folkways
2 Answers 1 views
In a class of 125 students 70 passed in Mathematics, 55 in statistics, and 30 in both. Then find the probability that a student selected at random fro
Correct Answer - `13//25` Consider the following events: A: A student is passed in Mathematics B: A student is passed in Statistics Then, `P(A) = (70)/(125), P(B) = (55)/(125), P(A nn...
2 Answers 1 views
A student is able to throw a ball vertically to maximum height of 40m. The maximum distance to which the student can throw the ball in the horizonal d
Correct Answer - D `H_("max")=(u^(2))/(2g)=40 rArr (u^(2))/(g)=80` `R_("max")=(u^(2))/(g)=80m`
2 Answers 1 views
A cell at telophase stage is observed by a student in a plant brought from the field. He tells his teacher that this cell is not like other cells at t
Correct Answer - A Polyploid cells have a chromosome number that is more than double the haploid number, e.g. Triticum aestivum (wheat) is a hexaploid (6n).
2 Answers 1 views
The probability that a teacher will give a surprise test during any class is 1/5. If a student is absent on two day what is the probability that he wi
Correct Answer - D Probability that one test is held `=2xx1/5xx4/5=8/25` Probability that tese in held on both days `1/5xx1/5=1/25` `therefore` Probability that the student misses at least one test `=8/25+1/25=9/25`
2 Answers 1 views
In a class of 10 student, probability of exactly I students passing an examination is directly proportional to `i^(2).` Then answer the following ques
Correct Answer - B Let P(i) be the probability that exactly I students are passing an examination. Now given that `P(A_(i))=lamda_(i)^(2)(where lamda"is constant")` `impliesunderset(i-1)overset(10)sumP(A_(i))=underset(i-1)overset(10)sum lamdai^(2)=lamda(10xx11xx21)/(6)=lamdaxx386=1` `implieslamda =1//358=5//77.` Let A reprsent the...
2 Answers 1 views