What is the average of the scores 90 and 40??

Answers

Answer 1

Answer: the first thing you do is add 90 and 40, which gives you 130... after that you just divide that sum by 2 giving you an average of 65

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There are 156 players on 13 teams. How many players are on each team.

Answers

There are 156 players on 13 teams. The no. of players on each team are :-
Therefore no. of player on each team = $(156)/(13) = 12$

you take the ammount of players, or the whole number which is 156 and then you devide it by the number of teams which is 13 and you get 12. so there are 12 players on each of the 13 teams for a total of 156 players

What is 78% of 50 questions

Answers

0.78 times 50 is 39.
78% is (0.78) So, multiply that by 50 and get the amount out of 50 questions.

A student gets 68 marks n therefore gets 85 percent total marks are?

Answers

Answer:

There are 80 marks in total.

Step-by-step explanation:

Let the number of total marks be $x$ .

The percentage score of the student can be written as the ratio

$\displaystyle (68)/(x) = 85\%$ .

However,

$\displaystyle 85\% = (85)/(100)$ .

Equating the two:

$\displaystyle (68)/(x) = (85)/(100)$ .

Cross-multiply (that is: multiple both sides by $100x$ , the product of the two denominators) to get

$85x = 68* 100$ .

$\displaystyle x = (68* 100)/(85) = 80$ .

In other words, there are 80 marks in total.

Josh used a standard deck of 52 cards to conduct an experiment. Half of the cards in the deck were red. The other half were black. Josh predicted that he would choose a red card in 4 out of 8 trials. When he conducted the experiment, he actually chose a red card 6 out of 8 times. Which explains the most likely reason for the discrepancy between Josh’s predicted and actual results?A.He incorrectly predicted the number of times he would choose a red card.
B.He incorrectly determined the actual number of times he chose a red card.
C.He used too few trials for the sample space.
D.He used too many trials for the sample space.

Answers

Answer: C. He used too few trials for the sample space.

Step-by-step explanation:

Given: Josh used a standard deck of 52 cards to conduct an experiment.

As half of the cards in the deck were red.

If we take sample space= 52 cards

Then probability of getting a red card $=(1)/(2)$

But Josh took 8 cards as sample space which is not enough for the sample space.

therefore, C. is the right answer. "He used too few trials for the sample space."

Answer:

Option C - He used too few trials for the sample space.

Step-by-step explanation:

Given: Josh used a standard deck of 52 cards to conduct an experiment. Half of the cards in the deck were red. The other half were black.

Josh predicted that he would choose a red card in 4 out of 8 trials.

When he conducted the experiment, he actually chose a red card 6 out of 8 times.

To find : Which explains the most likely reason for the discrepancy between Josh’s predicted and actual results?

Solution :

Sample space = 52 cards

As half of the cards in the deck were red.

Probability of getting a red card is $(1)/(2)$

He predict and conduct to choose a red card out of 8 trials which is not enough for the sample space.

Therefore, Option C is correct.

He used too few trials for the sample space.

Help with 9 pls thx

Answers

the answer to the problem is -25

Tom knows that in his school 10out of every 85 students are lefthanded. There are 391 students in Toms school. How many studentd in toms school are left handed

Answers

there are 39 left handed students at Toms school

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