Answer to Danilyn's Probability Question

The Sample Space is

Heads-green apple, strawberry, orange,banana
Tails-green apple, strawberry, orange,banana

My Answer to a Probability Question

Question:

In a bakery, they sell five different types of cupcakes: Chocolate, Vanilla, Carrot Banana, and Strawberry. One sunny afternoon, a young girl, a young man, and an old woman came into the bakery. The one they buy can be one of these five cupcakes.

a) Draw a Tree Diagram or a Chart, to show the sample space.


Answer:

My Probability Question

by Madeline







Joanne picks one of five marbles in the box. In that box there is a blue marble, a green marble, a red marble, a white marble and a yellow marble. After she picks a marble, she rolls a six sided die.

a) Draw/make a tree diagram or a table to organize these two events.

b) What is the sample space for this experiment?

Probability Question

Zack went to the Pizza Parlor to buy a pizza. The flavours are Cheese and Pepperoni. So he took and coin and flipped it.

Organize all the possible outcomes using a chart.

probability question

What are the different possible answers you can get when you spin a four sided spinner with the colours blue,red,green,and purple and roll a regular die?

Probability

Probability is the likelihood or the chance of an event happening. We determine prorobability by making a fraction.



favourable outcomes

______________



possible outcomes



flipping a coin heads

_______________

calling heads or tails

Probability can be expressed, written, using fractions, ratios, and percents.

1

_ , 1:2, 50%

2

Out come is one probable result of a probability experiment.

Favorable outcomes is a successful outcome in a probabilty experament.

p(outcome) is short for saying probability of something happening.

Eg.p(5) When rolling a die.

here is a link to help you with probability.

http://www.ixl.com/math/practice/grade-3-certain-probable-unlikely-impossible

Order of Operations

B - brackets

E - exponents

D - division

M - multiplication

A - addition

S - subtraction

here is how you work with BEDMAS.

1st - check if they're any brackets

2nd - check if they're are any exponents

3rd - check for division

4th - check for multiplication

5th - check for addition

6th - check for subtraction

here's an example

here are the solutions to Fridays homework:

1. Annie has been asked to calculate 1.7 + 6 ÷ 2. She claims the answer is 3.85. Do you agree? Explain why or why not.

No, because the answer is 4.7.

1.7 + 6 ÷ 2 =

1.7 + 3 =

4.7

2. Put brackets in the following expression to get the largest value

possible. What problem solving strategy did you use?

3 x 2.8 + 6.4 ÷ 4 =

brackets: 3 x (2.8 + 6.4 ÷ 4) =

3. Create a problem that could be solved using the following expression.

2.5 + 1.25 + 5 x 1.6 =

Lucy went to the canteen and bought a burger that cost $2.5, a cookie that cost $1.25 and 5 pieces of candy that cost $1.6. How much money would Lucy need to buy her lunch?

My answer:

$2.5 + $1.25 + 5 x $1.6 =

$2.5 + $1.25 + $8 =

$3.75 + $8 =

So Lucy would need $11.75 to pay for her lunch.

Here's a video to help you with the order of operations!

Also a link to help you out.

Order of Operations

B- brackets ~ ( )

E- exponents ~ 3²
D- division ~ ÷
M- multiplication ~ x
A- addition ~ +
S- subtraction ~ -

e.g: the picture above

1. Annie has been asked to calculate 1.7 + 6 ÷ 2. She claims the answer is 3.85. Do you agree? Explain why or why not.

No, I do not agree with Annie's answer. Annie probably did 1.7 + 6 = 7.7 ÷ 2 = 3.85, but her answer is right. Annie should have done 1.7 + (6 ÷ 2), which is 1.7 + 3 = 4.7

2. Put brackets in the following expression to get the largest value possible; 3 × 2.8 + 6.4 ÷ 4. What problem solving strategy did you use?

3 × 2.8 + 6.4 ÷ 4 =

(3 × 2.8) + (6.4 ÷ 4) =

8.4 + 1.6 =

= 10

3. Create a problem that could be solved using the following expression.

2.5 + 1.25 + 5 x 1.6

Question:

Anna and Jake calculated 2.5 + 1.25 + 5 x 1.6. Anna got 14, and Jake got 11.75. How do you think they got their answer? Who has the right answer?

Answer(my answer):

I think that Anna did the question like this:

2.5 + 1.25 + 5 x 1.6 = 14

I think that Jake did this:

(2.5 + 1.25) + (5 x 1.6) =

3.75 + 8 =

11

Jake added brackets so that he can make it easier.

What's your answer?

_________________________________________________________________________________________________

Here is a link for you to practice, Order of Operations.

Also here is a video: