Mr Shape Mathematics Give Away Sunday August 16th By 8pm - Education (3)

Mr Shape Mathematics Give Away Sunday August 16th By 8pm - Education (3) - Nairaland

Nairaland Forum › Nairaland General › Education › Mr Shape Mathematics Give Away Sunday August 16th By 8pm (3427 Views)

Re: Mr Shape Mathematics Give Away Sunday August 16th By 8pm by Spartancosta(m): 8:48pm On Aug 16, 2020

Mrshape:

Question 42.
A bagel containing 2 red balls and 2 black balls
If two balls are picked at random find the probability that they are different colors.

With workings

(1/4*1/4)+(1/4*1/4)
=1/8 ignore this

Re: Mr Shape Mathematics Give Away Sunday August 16th By 8pm by gr8cany: 8:48pm On Aug 16, 2020

Mrshape:

Question 42.
A bagel containing 2 red balls and 2 black balls
If two balls are picked at random find the probability that they are different colors.

With workings

P(rballs)=2/4=1/2.
P(bballs)=2/4=1/2
P(both)=1/2*1/2 =1/4

Re: Mr Shape Mathematics Give Away Sunday August 16th By 8pm by OSADNA009(m): 8:48pm On Aug 16, 2020

Mrshape:

Question 42.
A bagel containing 2 red balls and 2 black balls
If two balls are picked at random find the probability that they are different colors.

With workings

red ball=2
black=2
denominator=black+red ball=4
2/4
1/2

Re: Mr Shape Mathematics Give Away Sunday August 16th By 8pm by Spartancosta(m): 8:49pm On Aug 16, 2020

[quote author=Mrshape post=92896072]
Question 42.
A bagel containing 2 red balls and 2 black balls
If two balls are picked at random find the probability that they are different colors.

With workings

[/quote(2/4*2/4)+(2/4*2/4)
=1/2

Re: Mr Shape Mathematics Give Away Sunday August 16th By 8pm by Mrshape(op): 8:49pm On Aug 16, 2020

Question 42 still open

Re: Mr Shape Mathematics Give Away Sunday August 16th By 8pm by NDSMELODY(m): 8:50pm On Aug 16, 2020

Mrshape:

Question 42.
A bagel containing 2 red balls and 2 black balls
If two balls are picked at random find the probability that they are different colors.

With workings

2+2=4 blue = 1/2 black 1/2 1/2 - 1/2 = 0

Re: Mr Shape Mathematics Give Away Sunday August 16th By 8pm by Mrshape(op): 8:51pm On Aug 16, 2020

Question 42 still open
Or should I bring solution?

Re: Mr Shape Mathematics Give Away Sunday August 16th By 8pm by Harbidexy5(m): 8:52pm On Aug 16, 2020

Mrshape:

Question 42.
A bagel containing 2 red balls and 2 black balls
If two balls are picked at random find the probability that they are different colors.

With workings

Pr(R&B) or pr(B&R)
=¼*¼ +¼*¼
=²/16
=⅛

Re: Mr Shape Mathematics Give Away Sunday August 16th By 8pm by Harbidexy5(m): 8:53pm On Aug 16, 2020

Mrshape:

Question 42 still open
Or should I bring solution?

It's Done

Re: Mr Shape Mathematics Give Away Sunday August 16th By 8pm by Mrshape(op): 8:53pm On Aug 16, 2020

Harbidexy5:
Pr(R&B) or pr(B&R)
=¼*¼ +¼*¼
=²/16
=⅛

Not correct please

Re: Mr Shape Mathematics Give Away Sunday August 16th By 8pm by Mrshape(op): 8:53pm On Aug 16, 2020

Harbidexy5:
It's Done

It hasn't

Re: Mr Shape Mathematics Give Away Sunday August 16th By 8pm by Mrshape(op): 8:56pm On Aug 16, 2020

When you are not told with replacement it is without replacement

(2/4 •1/3)+(2/4•1/3)
2(1/6)
=1/3

1 Like

Re: Mr Shape Mathematics Give Away Sunday August 16th By 8pm by Mrshape(op): 8:56pm On Aug 16, 2020

Please if you has any issue with my solution please point it out

Re: Mr Shape Mathematics Give Away Sunday August 16th By 8pm by NDSMELODY(m): 8:57pm On Aug 16, 2020

Mrshape:
Question 42 still open

2+2=4 blue=1/2 black=1/2 probab = 1/2-1/2=0

Re: Mr Shape Mathematics Give Away Sunday August 16th By 8pm by Mrshape(op): 8:58pm On Aug 16, 2020

NDSMELODY:
2+2=4 blue=1/2 black=1/2 probab = 1/2-1/2=0

Not correct sir

Re: Mr Shape Mathematics Give Away Sunday August 16th By 8pm by Mrshape(op): 8:58pm On Aug 16, 2020

Next question loading

Re: Mr Shape Mathematics Give Away Sunday August 16th By 8pm by Spartancosta(m): 8:59pm On Aug 16, 2020

Mrshape:
When you are not told with replacement it is without replacement

(2/4 •1/3)+(2/4•1/3) 2(1/6) =1/3

naso person take dey fail exam, simple details matter

Re: Mr Shape Mathematics Give Away Sunday August 16th By 8pm by gr8cany: 8:59pm On Aug 16, 2020

Mrshape:

When you are not told with replacement it is without replacement

(2/4 •1/3)+(2/4•1/3)
2(1/6)
=1/3

Re: Mr Shape Mathematics Give Away Sunday August 16th By 8pm by Harbidexy5(m): 8:59pm On Aug 16, 2020

Mrshape:

Please if you has any issue with my solution please point it out

It's not correct bro...
If you had waited a Lil I would hv gotten it

Re: Mr Shape Mathematics Give Away Sunday August 16th By 8pm by Mrshape(op): 9:01pm On Aug 16, 2020

Question 43

Evaluate √9 (mod10)

Re: Mr Shape Mathematics Give Away Sunday August 16th By 8pm by Harbidexy5(m): 9:02pm On Aug 16, 2020

Mrshape:

Question 43

Evaluate √9 (mod10)

Re: Mr Shape Mathematics Give Away Sunday August 16th By 8pm by Spartancosta(m): 9:03pm On Aug 16, 2020

Mrshape:
Question 43
Evaluate √9 (mod10)

3(mod 10)

Re: Mr Shape Mathematics Give Away Sunday August 16th By 8pm by Mrshape(op): 9:03pm On Aug 16, 2020

Harbidexy5:
It's not correct bro...
If you had waited a Lil I would hv gotten it

But you guys would have told me to wait
When I asked if I should bring solution.

In case of next time just let me know if your solution is in the pipe line