In a public key encryption, a public key _______the data, while a private key _______ the data. a. Encrypts, decrypts b. Decrypts, encrypts c. Secures, stores d. Sends, receives

A Trojan horse is different from the other types of malware in that it a. is self-replicating b. requires human intervention to spread c. disguises itself as a legitimate program d. encrypts data

Which of the following was not around in the early days of application software? a. Personal computers b. Cloud computing c. Word processors d. Spreadsheet programs

Cellular networks are used to transmit: a. Voice and data b. Only voice c. Only data d. Video and voice

What type of defense is used against virus-infected software? a. Antivirus software b. Firewall c. Encryption d. Backup Server

In October 2018, a random sample of 2,000 Americans found that 26% of them knew how many amendments to the U.S. Constitution comprised the Bill of Rights. Calculate a 95% confidence interval for the proportion of Americans that know how many amendments there are in the Bill of Rights.

For which of the following values of the sample size n and the population proportion p will the sample proportion to have the smallest standard error?

Ariel is studying when pine trees should be harvested for lumber and replanted. She learns that the Southern Yellow Pine has an average height of 90 ft, and its height is normally distributed with a standard deviation of 4 ft. What proportion of Southern Yellow Pines are more than 95 feet tall?

The adult female Lampyris noctiluca (glowworm) has an average length of 16 mm. The glowworm that Alice is studying, however, has a length z-score of -3.42.  Which of the following is the correct interpretation of this glowworm’s z-score?

Gulf fritillary butterflies, common in Texas backyards, are sometimes confused with monarch butterflies, as they are both often orange, with some white spots. Gulf fritillary butterflies are somewhat smaller, on average, however; the means and standard deviations of both species’ wingspans are found below.  Species Mean wingspan Standard deviation Gulf Fritillary 8 cm 0.5 cm Monarch 9.6 cm 0.2 cm A backyard butterfly lover has found and identified a gulf fritillary that is 9.1 cm and a monarch that is 9.8 cm in their backyard; which is larger, relative to their species?