answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
grandymaker [24]
2 years ago
5

Vitor is going to guess on all 40 questions of his multiple-choice test. Each question on the test has 5 answer options.

Mathematics
2 answers:
laiz [17]2 years ago
5 0
He should just pick random answers or choose something closest to it.

grin007 [14]2 years ago
4 0

Answer: Close to 8 questions but probably not exactly 8 questions

                   

You might be interested in
If the probability of winning a carnival game was 2/5 and Max played it five times, write an expression that would calculate the
Dvinal [7]
Prob(winning carnival game) = 2/5 
<span>Prob(losing carnival game) = 3/5 </span>

<span>Prob (Max wins first 3 games, but loses last 2 games) </span>

<span>= Prob(Max wins game 1) * Prob(Max wins game 2) * Prob(Max wins game 3) * Prob(Max loses game 4) * Prob(Max loses game 5) </span>
8 0
2 years ago
There are 3 identical wooden blocks that are 50 inches long, 5 inches wide and 3 inches thick. If you glue them together, what i
finlep [7]

Answer:

336 inches of surface area

Step-by-step explanation:

The explanation is the picture.  I hope this answers your question.

4 0
2 years ago
Read 2 more answers
A quality control engineer at a potato chip company tests the bag filling machine by weighing bags of potato chips. Not every ba
Ahat [919]

Answer:

z=\frac{0.21 -0.15}{\sqrt{\frac{0.15(1-0.15)}{100}}}=1.68  

Step-by-step explanation:

Information provided

n=100 represent the random sample taken

X=21 represent the number of bags overfilled

\hat p=\frac{21}{100}=0.21 estimated proportion of overfilled bags

p_o=0.15 is the value that we want to test

z would represent the statistic

Hypothesis

We need to conduct a hypothesis in order to test if the true proportion of overfilled bags is higher than 0.15.:  

Null hypothesis:p =0.7  

Alternative hypothesis:p > 0.15  

The statistic for this case is:

z=\frac{\hat p -p_o}{\sqrt{\frac{p_o (1-p_o)}{n}}} (1)  

And replacing the info given we got:

z=\frac{0.21 -0.15}{\sqrt{\frac{0.15(1-0.15)}{100}}}=1.68  

5 0
2 years ago
Consider a single spin of the spinner.
alex41 [277]

Answer:

"landing on a shaded portion and landing on a 3"

"landing on an unshaded portion and landing on a number less than 2 "

Step-by-step explanation:

Mutually exclusive means the events will have no intersection.

Let's look at your first choice:

"landing on a shaded portion and landing on an even number"

Landing on a shaded portion would be 1 or 4.

Landing on an even number would be 2 or 4.

There is an intersection (they contain a common element), the 4.

These events are not mutually exclusive.

Let's look at your second choice:

"landing on a shaded portion and landing on a number greater than 3"

Landing on a shaded portion would be 1 or 4.

Landing on a number greater than 3 would be just 4.

There is an intersection; they both contain 4.

These events are not mutually exclusive.

Let's look at your third choice:

"landing on a shaded portion and landing on a 3"

Landing on a shaded portion would be 1 or 4.

Landing on 3 would just be 3.

There is no common elements in the lists listed.  These events have no intersection.

These events are mutually exclusive.

Let's look at your fourth choice:

"landing on an unshaded portion and landing on an odd number"

Landing on a unshaded portion would be 2 or 3.

Landing on an odd number would be 1 or 3.

There is an intersection; they both have 3 in common.

These events are not mutually exclusive.

Let's look at your fifth choice:

"landing on an unshaded portion and landing on a number less than 2 "

Landing on an unshaded portion would 2 or 3.

Landing on a number less than 2 would be 1.

There is no intersection.

These events are mutually exclusive.

6 0
2 years ago
Read 2 more answers
Which equation represents the graphed function?
Alika [10]

Answer:

y = -1/3x +3

Step-by-step explanation:

First we need to find the slope

m = (y2-y1)/(x2-x1)

   = (2-3)/(3-0)

   -1/3

Then we know the y intercept( where it crosses the y axis)

It crosses at y=3

The slope intercept form is

y= mx+b  where m is the slope and b is the y intercept

y = -1/3x +3

5 0
2 years ago
Read 2 more answers
Other questions:
  • The distance around a bicycle wheel is 21.98 feet.what is its diameter
    6·2 answers
  • A rectangle is transformed according to the rule R0, 90º. The image of the rectangle has vertices located at R'(–4, 4), S'(–4, 1
    16·2 answers
  • Daniel, my son, is exactly one fifth of my age. in 21 years time, i will be exactly twice his age. my wife is exactly seven time
    13·1 answer
  • What number is 1/10 as great as 7962
    12·2 answers
  • A twelve-hour clock is set at the correct time on the afternoon of May 17th. If the clock loses 6 minutes per day, what is the n
    5·2 answers
  • Justin weighs 15 pounds less than Greg weighs. Half of Greg’s weight is 75 pounds less than Justin’s weight. How much does each
    7·1 answer
  • Which is equivalent toStartRoot 10 EndRoot Superscript three-fourths x ?
    14·2 answers
  • A veterinarian does research on the causes of enteroliths, stones that develop in the colon of horses. She suspects that feeding
    8·1 answer
  • Write an exponential function in the form y=ab^x that goes through points (0,17) and(9,8704).
    6·1 answer
  • If ribbon candy costs 2.50 per foot. How many feet can you buy if u have 11.25
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!