If we want to know the number of star systems that the signal reached that have had planets in their habitable zones long enough for intelligent lie to develop, we multiply the total number by the fraction of star systems with planets, 0.50, and then by the average number of planets per planetary system that meet our criteria, 0.95. Nycz Nyt - NF MHz C X Use the fraction of the total star systems with planets and the fraction of those planets in the habitable zone to calculate the number of life-sustaining planets the signal

Q: Use the bar chart below to summarize the data in the form of frequency and relative frequency.…

A: Given information, Use the bar chart below to summarize the data in the form of frequency and…

Q: 14. Let Tbe the ring in Example 8. LetS=SET|f{2) = 0f. Prove that Sis a subring of T.

A: To show that S=f∈T|f(2)=0 is a subring of the ring T of all the continuous real functions we must…

Q: Sport Baseball Football Basketball Hockey Attendance (millions of people) 7.76 13.342 2.905 1.59

A: Note:-  We have to find total sum of people in all 4 sports in 1 year.

Q: (Round to two decimal places as needed.) Prisoners per 1000 population Prison Total State Population…

A:

Q: The 2000 population of Jacksonville, FL was 736,000 and was increasing at a rate of 1.49% each year.…

A:

Q: The average amount of money held by each child in a group of 5 is $0.50.If one of the children loses…

A: Given that: Total number of child = 5Average money held by each child = $0.50

Q: In a survey of 140 asthmatics, 35% had allergy to house dust. Construct the 99% CI for the…

A: Given that,The sample size  is 140. The 35% had allergy to house dust.i.e. The confidence level is…

Q: What is the class boundary between the third and fourth classes? Class boundary = What is the lower…

A: The table shows the wingspan of the birds (in mm).

Q: In 1960, an earthquake with a magnitude of 9 on the Richter scale occurred in Chile. In 1994, an…

A: An earthquake is the shaking of the surface of the Earth resulting from a sudden release of energy…

Q: The number of gallons of milk sold each day at a grocery store ........... variable

A: number of gallons  - numerical count. Hence it is a quantitative variable.

Q: At the beginning of a shift there are 5.25  bottles of hand sanitizer available. At the end of the…

A: At the beginning there are 5.25 bottles and at the end 3.5 bottles are left.

Q: 4. I roll a die 100 times and count how many of each number I get. 5. I spin a spinner 20 times and…

A:

Q: Pages in Romance Novels. A copyeditor thinks the standard deviation for the number of pages in a…

A:

Q: When water is released from the Kinzua Dam it is released gradually. The water level in Kinzua…

A: Question is solved.

Q: Rhonda took a ribbon which was originally 81 cm in length. She cut the ribbon in thirds and measured…

A: Here, n is the number of cuts. Then, by the above information, length of ribbon piece, L(n)=813n We…

Q: A student earns a semester GPA of 2.8 for 12 semester hours.  Prior to this the student had a GPA of…

A: Overall Mean: The value obtained by adding of sum of all the products of sample size with respect to…

Q: A group of 125 college students are surveyed about their note taking and study habits. Some results…

A:

Q: The temperature of a walk-in cold provisions cabinet is sampled twice daily for a 3-day period. The…

A:

Q: A merchant bought 15 2/5 pounds of apples and pears to sell at a fruit stand. 8 3/4 pounds were…

A:

Q: Illustration 31. In an examination at which 500 candidates appeared, boys outnumbered girls by 14…

A:

Q: 1. Line AB is tangent to circle O at A. If AB = 12 and OA = 5, find OB %3D B.

A: We have to find OB

Q: Over the period of a month, you trap and tag 15 deer in a forest, and mark them with tags. You set…

A: From the stated information, it is interpreted that: Initially tagged no. of deer = 15. No. of…

Q: a local government had an employee reduction and lost 1/5 of its employees . If 88 of its employees…

A:

Q: 13. Andrew recorded the daily high temperature every day for one month. He displayed the date on the…

A:

Q: A machine is 77% efficient and loses 1.1 horsepower through its drivetrain. Determine the horsepower…

A: Let the power input is dented by PI and the power output is denoted by PO and the power lost is…

Q: A number, x, is 3 when rounded to one significant figure. It is 2.9 when rounded to two significant…

A: NOTE: Refresh your page if you can't see any equations. . x=3 when it is rounded to one significant…

Q: In 1980, a certain country’s population was 79,588,924, and its area was 2,942,323 square miles.…

A:

Q: Don't round answers unless the instructions request approximations, or as part of checking your own…

A:

Q: he registrar of a university produced a circle chart showing enrollment in the various schools in…

A: Given P(Art amd science)=45%, P(journalism)=4%,P(Programing…

Q: You want to upgrade the tires on your truck. The manufacturer tires are P160/70R14. You want to…

A: First calculate the old and new tire diameter than use the formula for the actual speed.

Q: One week in the midwest, 3.4 inches of snow fell on Monday, 0.6 inches on Tuesday, 2.2 inches on…

A: Let the amount of snow on Friday = x inches  So the total amount of snow=…

Q: Round to the nearest ten. 9. 89 10. 56 11. 43 12. 15

A: Q. Round to the nearest ten. Ans. 9. 89, nearest ten is 90. 10. 56, nearest ten is 60. 11. 43,…

Q: The owner of a book shop surveyed people who bought fantasy novels to see if the store should expand…

A: