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?

In recent times, agriculture in Nigeria tends to lose its vital labour force as a result of?

• A. lack of an effective agricultural policy
• B. employment opportunities in the oil sector
• C. rural-urban drift
• D. low prices of agricultural products

Use the dialogue below to answer the question below.

Mr. Ganaba: Mr. Kotoun, where are you going with

hoe and cutlass on a day that has been

set aside for the rescheduled

gubernatorial election in our state?

Mr. Katoun: I am going to the farm to harvest some

tubers of yam for the next market day. I

don't need to remind you that we have

been made our own government.

Therefore, the sale of this product is

much more beneficial to me and my family than

whoever becomes the next governor.

• A. a social mobilizer
• B. a political analyst
• C. an election observer
• D. a party official

The Mahdiyya Movement in Sudan overthrew the ...

• A. Italo-Egyptian Regime in the early 1880s
• B. Italo-Egyptian Regime in the early 1890s
• C. Ottoman-Egyptian Regime in the early 1880s
• D. Ottoman-Egyptian Regime in the early 1890s

In the question below choose the word(s) or phrase(s) whichbest fills(s) the gap(s): The story on the lost jewel was quite .....

• A. unbelievable
• B. unbelieveable
• C. unbeliveable
• D. unbelivable

If P and Q are two statements, under what condition would p|q be false?

• A. If p is true and q is true
• B. If p is true and q is false
• C. If p is false and q is false
• D. If p is false and q is true

When an insured person admits that he has indemnified, he means that?

• A. the insurance company has accepted his claim
• B. the damaged properties has been recovered
• C. he has paid his premium fully
• D. the insurance company has restored him to his formal position

The dimension of a rectangular base of a right pyramid is 9 cm by 5cm. If the volume of the pyramid is 105 cm³, how high is the pyramid?

• A. 10cm
• B. 6cm
• C. 8cm
• D. 7cm

Which of the following statement is a disadvantage of human power? it

• A. controls other sources of farm power
• B. brings about least damage
• C. is easily available and controlled
• D. has low output

The primary aim of pressure groups is to

• A. Attract people's attention
• B. protects the interest of members
• C. captured political power
• D. fight corrupt officials