Standards, rule and criteria that determine acceptable norms that influence a cordial relationship in the society are referred to as

• A. regulations
• B. attitudes
• C. conventions
• D. values

Choose the most appropriate optionnearest in meaning to the underlined word(s).

One significant characteristic of the jet is that it encourages people tocut corners?

• A. not to face all problems
• B. to want to become rich quickly
• C. to want to avoid necessary hardships
• D. not to do the proper thing at the right time

The following data gives the lengths, in cm, of 30 pieces of iron rods :

45 55 65 60 61 68 59 54 64 76 50 68 72 68 80 67 70 62 79 67 64 63 71 59 64 53 57 74 55 57

(a) Using class intervals of 45 - 49, 50 - 54, 55 - 59, ... construct a frequency table of the data.

(b) Draw the histogram for the distribution

(c) Calculate the mean of the distribution

(d) What is the probability of selecting an iron rod whose length is in the modal class?

The ages, in years, of 50 teachers in a school are given below :

21 37 49 27 49 42 26 33 46 40 50 29 23 24 29 31 36 22 27 38 30 26 42 39 34 23 21 32 41 46 46 31 33 29 28 43 47 40 34 44 26 38 34 49 45 27 25 33 39 40

(a) Form a frequency distribution table of the data using the intervals : 21 - 25, 26 - 30, 31 - 35 etc.

(b) Draw the histogram of the distribution

(c) Use your histogram to estimate the mode

(d) Calculate the mean age.

In the question below choose the optionnearest in meaning to the word(s) or phrase(s) underlined: The patientdisregarded the advice of the doctor

• A. ignored
• B. disobeyed
• C. questioned
• D. respected

A shortened form of the Periodic Table is shown below. Use it to answer questions (a) and (b)

(a) Which of the elements represented as A to E in the table, above is:

(i) transition metal;

(ii) an alkaline earth meta

(iii) the least reactive;

(iv) the most electronegative?

(b)(i) What type of bond would exist in a compound formed when element D reacts with oxygen?

(ii) Write the formula of the compound formed in (b)(i) above.

Calculate the time taken to heat 2kg of water from 50°C to 100°C in an electric kettle taking 5A, from a 210V supply. (Specific heat capacity of water = 4200\(kg^{-1}K{-1}\)

• A. 2.5 minutes
• B. 5.7 minutes
• C. 6.7 minutes
• D. 7.5 minutes

Which of the following parts of the' tongue does not correspond to the taste indicated against it?

• A. Tip-sweet
• B. Centre salt
• C. Back-sour
• D. Side-sour

After Saul had realized that God would have nothing to do with him, he sought the help of

• A. a medium
• B. Achish
• C. Samuel
• D. a prophet

In the long run, the equilibrium point of a monoplistic firm is a point where the

• A. marginal cost curve is tangential to the average fixed cost curve
• B. demand curve is tangential to the average variable cost curve
• C. supply cuvre is tangential to the marginal cost curve
• D. demand curv is tangential to the average cost curve