A circle is drawn within a square as shown What is the best approximation for the area of the shaded
region?
Use 3.14 to approximate pi.
O 10.54 cm
. 27.02 cm
O 87.47 cm
7 cm
104.86 cm

Evaluate 8j -k+148j−k+14 when j=0.25j=0.25 and k=1k=1.

In a test for esp (extrasensory perception), a subject is told that cards only the experimenter can see contain either a star, a circle, a wave, or a square. as the experimenter looks at each of 20 cards in turn, the subject names the shape on the card. a subject who is just guessing has probability 0.25 of guessing correctly on each card. a. the count of correct guesses in 20 cards has a binomial distribution. what are n and p? b. what is the mean number of correct guesses in 20 cards for subjects who are just guessing? c. what is the probability of exactly 5 correct guesses in 20 cards if a subject is just guessing?

Question 4 of 10 2 points what is the second part of the process of investigating a question using data? a. rephrasing the question o b. describing the data c. collecting the data o d. making an inference submit