An athletics club has both an outdoor swimming pool and an indoor swimming pool. Even though the outdoor pool is heated, it has more swimmers in the summer than in the winter. The indoor swimming pool tends to have a more consistent number of swimmers daily throughout the year. The club director records the daily number of swimmers for each pool into two data sets. Select the best statement below, comparing the variability for these two groups. The number of swimmers in the indoor pool would have a smaller standard deviation because the number of swimmers varies less. The number of swimmers in the outdoor pool would have a smaller standard deviation because the number of swimmers varies less. The number of swimmers in the indoor pool would have a smaller standard deviation because the number of swimmers varies more. The number of swimmers in the outdoor pool would have a smaller standard deviation because the number of swimmers varies more. The number of swimmers in the indoor pool would have a smaller standard deviation because the temperature of the pool is cooler. We are unable to determine which group would have the smaller standard deviation from this information