please can anybody help me out here I have an assigment but I don't know how to go about it
QUESTION ONE
in a survey of 100 students, those studying various languages were found to be: Spanish 28; German 30;
French 42; Spanish and French 10; Spanish and German 8; German and French 5; all the three languages
3
(I) how many students studied no language?
(ii) how many students had French as their only language?
QUESTION TWO
in a manufacturing process 20% of items produced are defective. 6 items are chosen from the production
line, determine the probability of getting the following
(I) exactly one?
(ii) none?
(iii) more than two?
I will be very grate full if any mathematician can help me out pleasssss tanks

this is set na, find new general maths or essential.mathematics text book

Jregz:
this is set na, find new general maths or essential.mathematics text book

Use venn diagram to solve it, under set. Consult your secondary school math textbook.

Answer to Question 1


U={100}

S={28}
G={30}
F={42}
S n F = {10}
S n G = {8}
G n F = {5}
S n G n F = {3}

I. Those who speak no language
= U - (number of those who speak at least one language)
= 100 - (13 + 20 + 30 + 5 + 7 + 2 + 3)
= 100 - 80
= 20

II. Those who speak only french
= Total french speakers - total speakers of french and any other language
= 42 - (7 + 2 + 3)
=30.

Craigston:
Brb

OK am waiting

Weezyval:
please can anybody help me out here I have an assigment but I don't know how to go about it
QUESTION ONE
in a survey of 100 students, those studying various languages were found to be: Spanish 28; German 30;
French 42; Spanish and French 10; Spanish and German 8; German and French 5; all the three languages
3
(I) how many students studied no language?
(ii) how many students had French as their only language?
QUESTION TWO
in a manufacturing process 20% of items produced are defective. 6 items are chosen from the production
line, determine the probability of getting the following
(I) exactly one?
(ii) none?
(iii) more than two?
I will be very grate full if any mathematician can help me out pleasssss tanks

This stuff is set theory....go and read set theory on any good mathematics textbook...

Craigston:
Answer to Question 1
U={100}

(the universal set)

S={28}

(total spanish)

G={30}

(total german)

F={42}

(total french)

S n F = {10}

(spanish and french only)

S n G = {8}

(spanish and german only)

G n F = {5}

(german and french only)

S n G n F = {3}

(speakers of all three)

I. Those who speak no language = U - (number of those who speak at least one language) = 100 - (13 + 20 + 30 + 5 + 7 + 2 + 3) = 100 - 80 = 20
II. Those who speak only french = Total french speakers - total speakers of french and any other language = 42 - (7 + 2 + 3) =30.

tanks a lot am very grateful God bless u

Weezyval:
please can anybody help me out here I have an assigment but I don't know how to go about it
QUESTION ONE
in a survey of 100 students, those studying various languages were found to be: Spanish 28; German 30;
French 42; Spanish and French 10; Spanish and German 8; German and French 5; all the three languages
3
(I) how many students studied no language?
(ii) how many students had French as their only language?
QUESTION TWO
in a manufacturing process 20% of items produced are defective. 6 items are chosen from the production
line, determine the probability of getting the following
(I) exactly one?
(ii) none?
(iii) more than two?
I will be very grate full if any mathematician can help me out pleasssss tanks

Do you mean the probability of finding defective products or non-defective products in the above magnitudes?

Craigston:
Answer to Question 1


U={100}

(the universal set)

S={28}

(total spanish)

G={30}

(total german)

F={42}

(total french)

S n F = {10}

(spanish and french only)

S n G = {8}

(spanish and german only)

G n F = {5}

(german and french only)

S n G n F = {3}

(speakers of all three)

I. Those who speak no language
= U - (number of those who speak at least one language)
= 100 - (13 + 20 + 30 + 5 + 7 + 2 + 3)
= 100 - 80
= 20

II. Those who speak only french
= Total french speakers - total speakers of french and any other language
= 42 - (7 + 2 + 3)
=30.

I am glad how you answered the question...

Sincerely speaking you did a gentlemanly job...

This is what we all ought to be doing here not just small thing we will say "PM me"...

Na wa o....

But hey guys woun't you join be an scale ewu? hahahaa am already weighing the ewu on the scale while dancing garlala.. ROFL

Dmayor7:


I am glad how you answered the question...

Sincerely speaking you did a gentlemanly job...

This is what we all ought to be doing here not just small thing we will say "PM me"...

Na wa o....

But hey guys woun't you join be an scale ewu? hahahaa am already weighing the ewu on the scale while dancing garlala.. ROFL

Happy scaling...