1answer.
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
mrs_skeptik [129]
3 years ago
14

Ted is taking a true-false test. He has a 90% chance of identifying the correct answer to each question. Unfortunately, there is

a 25% chance that he will circle the opposite of his intended answer. What is the probability, expressed as a percent, that Ted circles the correct answer to any particular question on this test?
Mathematics
1 answer:
TEA [102]3 years ago
8 0

Answer:

0.675

Step-by-step explanation:

given that Ted is  taking a true-false test. He has a 90% chance of identifying the correct answer to each question. Unfortunately, there is a 25% chance that he will circle the opposite of his intended answer.

For Ted circling the correct answer  to any particular question on this test,

first he has to identify the correct answer and then round the correct answer.

Probability for Ted circles the correct answer to any particular question on this test

= Prob for idenfitying correct answer and rounding correct answer

= P(identify correct answer)*P(rounds of correct answer)

= 0.90 ( 1-0.25)

= 0.675

You might be interested in
Colossus Added to six flags st. Louis in 1986, the Colossus is a giant Ferris wheel. Its diameter is 165 feet, it rotates at a r
NemiM [27]

Given:

D=165 feet and the frequency of the motion is 1.6 revolutions per minute.

Solution:

The radius is half of the diameter.

The radius of the wheel is 82.5 feet.

T=\frac{1}{1.6} \text{ minutes}

As we know: \omega=\frac{2\pi}{T}

Substitute the value of T in the above formula.

\omega=\frac{2\pi}{\frac{1}{1.6}}\\\omega=3.2\pi

If the center of the wheel is at the origin then for t=0 the rest position is -a.

This can be written as:

h(t)=-a\cos(\omega t)\\h(t)=-82.5cos(32.\pi t)

The actual height of the rider from the ground is:

h(t)=\text{ Initial height from bottom}+\text{ radius}-82.5\cos(3.2\pi t)\\h(t)=15+82.5-82.5\cos(3.2\pi t)\\h(t)=97.5-82.5\cos(3.2\pi t)

The required equation is h(t)=97.5-82.5\cos(3.2\pi t).

3 0
3 years ago
Please help me pls 7tyh grade math
Andrews [41]
(4/7)-(1/3)
(12/31)-(7/21)
(5/21) is left
Or
In decimal form
(4/7)=0.571
(1/3)= 0.333
0.571-0.333
=0.238
8 0
3 years ago
I need help on everything
zvonat [6]
B is 12
c is 6 because you don't count the zero
3 0
2 years ago
Read 2 more answers
Help on number 1 ? :)
LiRa [457]

Answer:

it would be the second opition

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
Which of the following is equivalent to the equation below
NNADVOKAT [17]
1- A = B = m²-16

2- D = 4x²-3 proof: (8x³-6x)/2x =2x(4x²-3)/2x simplify to get the answer
5 0
3 years ago
Other questions:
  • What is the interquartile range of 10,3,7,6,9,12,13
    6·1 answer
  • The table shows the percentage of vote each party obtains in an election
    12·1 answer
  • The present ages of Vijay and gautam are in ratio 2:3. five years hence,their ages will be in the ratio 3:4. find their present
    15·1 answer
  • What is the opposite of -3?
    6·2 answers
  • Change 175 degrees to radian measure in terms of pi
    14·1 answer
  • Line segment XY was used to draw a copy of ABC.XY is 3.5 centimeters long. What is the length of
    8·2 answers
  • Find the simple interest. $18,981 at 9% for 208 days
    7·1 answer
  • Select all numbers that have an absolute value of 12 Choose all answers that apply:
    15·2 answers
  • The Science Club went on a two-day field trip. The first day the members paid $30 for transportation plus $10 per ticket to the
    6·1 answer
  • A carpenter is making a backyard deck. In the measurements, he has determined that he needs to make a support triangle with an a
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!