Tai has a bag of different-colored balloons. Without looking in the bag, she selects a balloon, records it's color, and puts it back in the bag. All balloons are equally likely to be chosen. She repeats this 50 times. Based on the data Tai collected (SHOWN IN THE PIC BELOW), what is the estimate probability, in simplest form, of choosing yellow balloon from the bag?

(PLS HELP MEEE)

At wind speeds above 1000 centimeters per second (cm/sec), significant sand-moving events begin to occur. wind speeds below 1000 cm/sec deposit sand and wind speeds above 1000 cm/sec move sand to new locations. the cyclic nature of wind and moving sand determines the shape and location of large dunes. at a test site, the prevailing direction of the wind did not change noticeably. however, the velocity did change. fifty-nine wind speed readings gave an average velocity of x = 1075 cm/sec. based on long-term experience, σ can be assumed to be 245 cm/sec. (a) find a 95% confidence interval for the population mean wind speed at this site. (round your answers to the nearest whole number.) lower limit cm/sec upper limit cm/sec